Clinical and therapeutic aspects in dento-alveolar disharmony (DAD) with crowding
Identifieur interne : 000526 ( Pmc/Corpus ); précédent : 000525; suivant : 000527Clinical and therapeutic aspects in dento-alveolar disharmony (DAD) with crowding
Auteurs : Anne-Marie Rauten ; Petra Urlin ; M D Lina Olteanu ; Camelia Maglaviceanu ; M. R. Popescu ; Elina TeodorescuSource :
- Current Health Sciences Journal [ 2067-0656 ] ; 2013.
Abstract
Dento-alveolar disharmony (DAD) with crowding represents a predispose factor for periodontal pathology installing, especially when septic inflammation is associated. In this context, the identification of integrity or presence of the periodontal structure modifications becomes essential, any discovered element of periodontal pathology transforming into an important factor for a correct and beneficial orthodontic or periodontal-orthodontic therapy setup. The purpose of our study was to reveal the relations between the DAD existence and periodontal modifications within a lot of 528 subjects of 7 to 19 years old wearing different DAD who asked for an orthodontic control, and also the effects of orthodontic therapy upon periodontal structures for the situations in which this therapy was instituted. 74,87% was the percentage for patients with DAD and crowding who accepted the initiation of an orthodontic treatment and 12,75% of them had a friable C type periodontium (with great possibility to evolve towards a periodontal pathology), 25,62% had chronic gingivitis, and in 15,43% there have been noticed gingival recessions more than 2 mm. The orthodontic treatment was finalized for 44,96% of the patients, in 13,43% we noticed the persistence of C type periodontium, in 8,95% of gingival recessions more than 2 mm, in 25,37% chronic gingivitis and in 22,38% hypertrophic gingivitis. Conclusion: it is important to initiate an exhaustive control of the patient with DAD before, during and after the orthodontic treatment, especially if the patient is susceptible to develop a periodontal pathology, and also to maintain a good oral hygiene along the treatment.
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PubMed: 24778853
PubMed Central: 3945256
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<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Clinical and therapeutic aspects in dento-alveolar disharmony (DAD) with crowding</title><author><name sortKey="Rauten, Anne Marie" sort="Rauten, Anne Marie" uniqKey="Rauten A" first="Anne-Marie" last="Rauten">Anne-Marie Rauten</name><affiliation><nlm:aff id="AFF1">Department of Orthodontics, Faculty of Dental Medicine, UMF Craiova</nlm:aff></affiliation></author><author><name sortKey=" Urlin, Petra" sort=" Urlin, Petra" uniqKey=" Urlin P" first="Petra" last=" Urlin">Petra Urlin</name><affiliation><nlm:aff id="AFF2">Department of Periodontology, Faculty of Dental Medicine, UMF Craiova</nlm:aff></affiliation></author><author><name sortKey="Olteanu, M D Lina" sort="Olteanu, M D Lina" uniqKey="Olteanu M" first="M D Lina" last="Olteanu">M D Lina Olteanu</name><affiliation><nlm:aff id="AFF3">Department of Pedodontics, Faculty of Dental Medicine, UMF Craiova</nlm:aff></affiliation></author><author><name sortKey="Maglaviceanu, Camelia" sort="Maglaviceanu, Camelia" uniqKey="Maglaviceanu C" first="Camelia" last="Maglaviceanu">Camelia Maglaviceanu</name><affiliation><nlm:aff id="AFF3">Department of Pedodontics, Faculty of Dental Medicine, UMF Craiova</nlm:aff></affiliation></author><author><name sortKey="Popescu, M R" sort="Popescu, M R" uniqKey="Popescu M" first="M. R." last="Popescu">M. R. Popescu</name><affiliation><nlm:aff id="AFF4">Department of Prosthetics, Faculty of Dental Medicine, UMF Craiova</nlm:aff></affiliation></author><author><name sortKey="Teodorescu, Elina" sort="Teodorescu, Elina" uniqKey="Teodorescu E" first="Elina" last="Teodorescu">Elina Teodorescu</name><affiliation><nlm:aff id="AFF5">Department of Orthodontics, Faculty of Dental Medicine, UMF Carol Davila Bucureşti</nlm:aff></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">PMC</idno><idno type="pmid">24778853</idno><idno type="pmc">3945256</idno><idno type="url">http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3945256</idno><idno type="RBID">PMC:3945256</idno><date when="2013">2013</date><idno type="wicri:Area/Pmc/Corpus">000526</idno><idno type="wicri:explorRef" wicri:stream="Pmc" wicri:step="Corpus" wicri:corpus="PMC">000526</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en" level="a" type="main">Clinical and therapeutic aspects in dento-alveolar disharmony (DAD) with crowding</title><author><name sortKey="Rauten, Anne Marie" sort="Rauten, Anne Marie" uniqKey="Rauten A" first="Anne-Marie" last="Rauten">Anne-Marie Rauten</name><affiliation><nlm:aff id="AFF1">Department of Orthodontics, Faculty of Dental Medicine, UMF Craiova</nlm:aff></affiliation></author><author><name sortKey=" Urlin, Petra" sort=" Urlin, Petra" uniqKey=" Urlin P" first="Petra" last=" Urlin">Petra Urlin</name><affiliation><nlm:aff id="AFF2">Department of Periodontology, Faculty of Dental Medicine, UMF Craiova</nlm:aff></affiliation></author><author><name sortKey="Olteanu, M D Lina" sort="Olteanu, M D Lina" uniqKey="Olteanu M" first="M D Lina" last="Olteanu">M D Lina Olteanu</name><affiliation><nlm:aff id="AFF3">Department of Pedodontics, Faculty of Dental Medicine, UMF Craiova</nlm:aff></affiliation></author><author><name sortKey="Maglaviceanu, Camelia" sort="Maglaviceanu, Camelia" uniqKey="Maglaviceanu C" first="Camelia" last="Maglaviceanu">Camelia Maglaviceanu</name><affiliation><nlm:aff id="AFF3">Department of Pedodontics, Faculty of Dental Medicine, UMF Craiova</nlm:aff></affiliation></author><author><name sortKey="Popescu, M R" sort="Popescu, M R" uniqKey="Popescu M" first="M. R." last="Popescu">M. R. Popescu</name><affiliation><nlm:aff id="AFF4">Department of Prosthetics, Faculty of Dental Medicine, UMF Craiova</nlm:aff></affiliation></author><author><name sortKey="Teodorescu, Elina" sort="Teodorescu, Elina" uniqKey="Teodorescu E" first="Elina" last="Teodorescu">Elina Teodorescu</name><affiliation><nlm:aff id="AFF5">Department of Orthodontics, Faculty of Dental Medicine, UMF Carol Davila Bucureşti</nlm:aff></affiliation></author></analytic><series><title level="j">Current Health Sciences Journal</title><idno type="ISSN">2067-0656</idno><idno type="eISSN">2069-4032</idno><imprint><date when="2013">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en"><p>Dento-alveolar disharmony (DAD) with crowding represents a predispose factor for periodontal pathology installing, especially when septic inflammation is associated. In this context, the identification of integrity or presence of the periodontal structure modifications becomes essential, any discovered element of periodontal pathology transforming into an important factor for a correct and beneficial orthodontic or periodontal-orthodontic therapy setup. The purpose of our study was to reveal the relations between the DAD existence and periodontal modifications within a lot of 528 subjects of 7 to 19 years old wearing different DAD who asked for an orthodontic control, and also the effects of orthodontic therapy upon periodontal structures for the situations in which this therapy was instituted. 74,87% was the percentage for patients with DAD and crowding who accepted the initiation of an orthodontic treatment and 12,75% of them had a friable C type periodontium (with great possibility to evolve towards a periodontal pathology), 25,62% had chronic gingivitis, and in 15,43% there have been noticed gingival recessions more than 2 mm. The orthodontic treatment was finalized for 44,96% of the patients, in 13,43% we noticed the persistence of C type periodontium, in 8,95% of gingival recessions more than 2 mm, in 25,37% chronic gingivitis and in 22,38% hypertrophic gingivitis. Conclusion: it is important to initiate an exhaustive control of the patient with DAD before, during and after the orthodontic treatment, especially if the patient is susceptible to develop a periodontal pathology, and also to maintain a good oral hygiene along the treatment. </p></div></front><back><div1 type="bibliography"><listBibl><biblStruct><analytic><author><name sortKey="Pugaca, J" uniqKey="Pugaca J">J Pugaca</name></author><author><name sortKey="Urtane, I" uniqKey="Urtane I">I Urtane</name></author><author><name sortKey="Liepa, A" uniqKey="Liepa A">A Liepa</name></author></analytic></biblStruct><biblStruct><analytic><author><name sortKey="Pu Ca U, Cg" uniqKey="Pu Ca U C">CG Puşcaşu</name></author><author><name sortKey="Totolici, D" uniqKey="Totolici D">D. 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<front><journal-meta><journal-id journal-id-type="nlm-ta">Curr Health Sci J</journal-id><journal-id journal-id-type="iso-abbrev">Curr Health Sci J</journal-id><journal-id journal-id-type="publisher-id">CHSJ</journal-id><journal-title-group><journal-title>Current Health Sciences Journal</journal-title></journal-title-group><issn pub-type="ppub">2067-0656</issn><issn pub-type="epub">2069-4032</issn><publisher><publisher-name>Medical University Publishing House Craiova</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="pmid">24778853</article-id><article-id pub-id-type="pmc">3945256</article-id><article-id pub-id-type="publisher-id">2013.1.07</article-id><article-categories><subj-group subj-group-type="heading"><subject>Original Paper</subject></subj-group></article-categories><title-group><article-title>Clinical and therapeutic aspects in dento-alveolar disharmony (DAD) with crowding</article-title></title-group><contrib-group><contrib contrib-type="author"><name><surname>Rauten</surname><given-names>Anne-Marie</given-names></name><xref ref-type="aff" rid="AFF1">1</xref></contrib><contrib contrib-type="author"><name><surname>Şurlin</surname><given-names>Petra</given-names></name><xref ref-type="aff" rid="AFF2">2</xref></contrib><contrib contrib-type="author"><name><surname>Olteanu</surname><given-names>Mădălina</given-names></name><xref ref-type="aff" rid="AFF3">3</xref></contrib><contrib contrib-type="author"><name><surname>Maglaviceanu</surname><given-names>Camelia</given-names></name><xref ref-type="aff" rid="AFF3">3</xref></contrib><contrib contrib-type="author"><name><surname>Popescu</surname><given-names>M.R.</given-names></name><xref ref-type="aff" rid="AFF4">4</xref></contrib><contrib contrib-type="author"><name><surname>Teodorescu</surname><given-names>Elina</given-names></name><xref ref-type="aff" rid="AFF5">5</xref></contrib></contrib-group><aff id="AFF1"><label>1</label>Department of Orthodontics, Faculty of Dental Medicine, UMF Craiova</aff><aff id="AFF2"><label>2</label>Department of Periodontology, Faculty of Dental Medicine, UMF Craiova</aff><aff id="AFF3"><label>3</label>Department of Pedodontics, Faculty of Dental Medicine, UMF Craiova</aff><aff id="AFF4"><label>4</label>Department of Prosthetics, Faculty of Dental Medicine, UMF Craiova</aff><aff id="AFF5"><label>5</label>Department of Orthodontics, Faculty of Dental Medicine, UMF Carol Davila Bucureşti</aff><author-notes><corresp id="cor1">Correspondence Address: Associate professor Mihai Raul Popescu PhD, MD
<named-content content-type="dept">Department of Prosthetics</named-content><institution>Faculty of Dental Medicine of Craiova</institution><addr-line>Str. Petru Rareş, nr. 2-4</addr-line><addr-line>Craiova</addr-line><country>Romania</country><phone>+40722557407</phone><email>popescumihairaul@yahoo.com</email></corresp></author-notes><pub-date pub-type="ppub"><season>Jan-Mar</season><year>2013</year></pub-date><pub-date pub-type="epub"><day>21</day><month>3</month><year>2013</year></pub-date><volume>39</volume><issue>1</issue><fpage>39</fpage><lpage>44</lpage><history><date date-type="received"><day>3</day><month>12</month><year>2012</year></date><date date-type="accepted"><day>25</day><month>1</month><year>2013</year></date></history><permissions><copyright-statement>Copyright © 2013, Medical University Publishing House Craiova</copyright-statement><copyright-year>2013</copyright-year></permissions><abstract><p>Dento-alveolar disharmony (DAD) with crowding represents a predispose factor for periodontal pathology installing, especially when septic inflammation is associated. In this context, the identification of integrity or presence of the periodontal structure modifications becomes essential, any discovered element of periodontal pathology transforming into an important factor for a correct and beneficial orthodontic or periodontal-orthodontic therapy setup. The purpose of our study was to reveal the relations between the DAD existence and periodontal modifications within a lot of 528 subjects of 7 to 19 years old wearing different DAD who asked for an orthodontic control, and also the effects of orthodontic therapy upon periodontal structures for the situations in which this therapy was instituted. 74,87% was the percentage for patients with DAD and crowding who accepted the initiation of an orthodontic treatment and 12,75% of them had a friable C type periodontium (with great possibility to evolve towards a periodontal pathology), 25,62% had chronic gingivitis, and in 15,43% there have been noticed gingival recessions more than 2 mm. The orthodontic treatment was finalized for 44,96% of the patients, in 13,43% we noticed the persistence of C type periodontium, in 8,95% of gingival recessions more than 2 mm, in 25,37% chronic gingivitis and in 22,38% hypertrophic gingivitis. Conclusion: it is important to initiate an exhaustive control of the patient with DAD before, during and after the orthodontic treatment, especially if the patient is susceptible to develop a periodontal pathology, and also to maintain a good oral hygiene along the treatment. </p></abstract><kwd-group kwd-group-type="author"><kwd>Dento-alveolar disharmony (DAD) with crowding</kwd><kwd>periodontal modifications</kwd><kwd>inflammation</kwd><kwd>orthodontic treatment</kwd></kwd-group></article-meta></front><body><sec sec-type="intro"><title>Introduction</title><p>DAD with crowding represents a predispose factor for the onset of periodontal pathology, especially when septic inflammation is associated, because the disproportion between mesial-distal dimensions of permanent teeth and alveolar arches perimeter leads first of all to diverse dental malpositions (ectopy, rotation, inclusion) localized at incisive-canine regions, and secondly to numerous retentive sites for food rests and bacterial plaque that are difficult to remove through self or artificial cleaning [<xref rid="B1" ref-type="bibr">1</xref>,<xref rid="B2" ref-type="bibr">2</xref>,<xref rid="B3" ref-type="bibr">3</xref>]. Recent studies reconfirmed that this predisposition is not invariably followed by developing a periodontal pathology (no matter for its type - gingival overgrowth, gingival recession, chronic marginal periodontitis), especially if the patient respects the instructions regarding the oral hygiene procedures [<xref rid="B4" ref-type="bibr">4</xref>,<xref rid="B5" ref-type="bibr">5</xref>].</p><p>Teeth in malpositions are the subject for non-axial occlusal burdens that can generate lateral harmful forces for support periodontal structures [<xref rid="B6" ref-type="bibr">6</xref>].</p><p>Another issue raised by this anomaly is represented by the fact that malpositioned teeth do not always erupt into the band of attached gingival, being able to erupt also into the oral mucosa [<xref rid="B6" ref-type="bibr">6</xref>] and even the tooth is aligned afterwards into the arch, a deficient, thin periodontium will structure on its vestibular side, considered to be a risk factor for the future mucosal and gingival problems. </p><p>The correct periodontal-orthodontic treatment planning will allow important dental movements, even in patients with dimensional reduced periodontium if the movements respect genetic determined bone limits. Some authors consider that the orthodontic dental movement represents an alternative method for bone regenerate inducing and gingival biotype regeneration [<xref rid="B7" ref-type="bibr">7</xref>] and that short and long term results of the orthodontic treatment actually reflect the efficiency of orthodontics-periodontology collaboration [<xref rid="B8" ref-type="bibr">8</xref>].</p></sec><sec><title>Matherial and Method</title><p>The study was achieved between 2008 and 2012 on a lot of 528 patients of 7-19 years old, presenting different dento-maxillary anomalies and asking for orthodontic treatment. The purpose of this clinical study was: to reveal the role of dento-alveolar disharmony (DAD) with crowding as a contributory factor in inducing chronic marginal periodontitis, by maintaining the inflammation at periodontal level (facilitating plaque gathering), by changing the intensity and direction of occlusal forces with gingival contour and/or alveolar bone architecture changing; to indicate the role of orthodontic treatment onset in children and adolescents by preventing the apparition of periodontal modifications or for the healing of existing periodontal modifications. From the mentioned lot there have been selected the cases we considered to be suggestive, in order to indicate and evaluate the influence of DAD with crowding. To establish a correct diagnosis and an adequate orthodontic, periodontal-orthodontic treatment plan, the clinical exam of the patients was completed by radiological exams: ortopantomographies (for orthodontic and periodontal diagnose), profile or front teleradiographies (for orthodontic diagnose and treatment).</p></sec><sec sec-type="results"><title>Results</title><p>Of the 528 consulted patients, 322 were female, representing 61% and 206 were male, representing 39%.</p><p>The dento-maxillar anomalies analyze (respecting the syndrome classification of the German school) showed that the dento-alveolar disharmony (DAD) with crowding was met in about 38% (199/528) (Chart <xref ref-type="fig" rid="Chart1">1</xref>, <xref ref-type="table" rid="T1">1</xref>).</p><fig id="Chart1" orientation="portrait" position="float"><label>Chart 1</label><caption><p>Patients distribution regardind the dento-maxillar anomaly </p></caption><graphic xlink:href="CHSJ-39-1-039-chart1"></graphic></fig><table-wrap id="T1" orientation="portrait" position="float"><label>Table 1</label><caption><p>The distribution of subjects with DAD depending on the initial periodontal status</p></caption><table frame="hsides" rules="groups"><tbody><tr><td rowspan="3" colspan="1"><bold>DAD</bold><break></break><bold>(total no. </bold><break></break><bold>204/528)</bold></td><td rowspan="3" colspan="1"><bold>No.</bold></td><td rowspan="3" colspan="1"><bold>Percent (%)</bold></td><td colspan="2" rowspan="2"><bold>C type, thin marginal periodontium</bold></td><td colspan="5" rowspan="1"><bold>Elements of periodontal pathology</bold></td></tr><tr><td colspan="2" rowspan="1"><bold>Gingivitis</bold></td><td colspan="2" rowspan="1"><bold>Gingival recessions (≥2mm)</bold></td><td rowspan="2" colspan="1"><bold>Aggressive marginal periodontitis starting at young age</bold></td></tr><tr><td rowspan="1" colspan="1"><bold>No.</bold></td><td rowspan="1" colspan="1"><bold>Percent (%)</bold></td><td rowspan="1" colspan="1"><bold>No.</bold></td><td rowspan="1" colspan="1"><bold>Percent</bold><break></break><bold>(%)</bold></td><td rowspan="1" colspan="1"><bold>No.</bold></td><td rowspan="1" colspan="1"><bold>Percent</bold><break></break><bold>(%)</bold></td></tr><tr><td rowspan="1" colspan="1">With crowding</td><td rowspan="1" colspan="1">199</td><td rowspan="1" colspan="1">37,66</td><td rowspan="1" colspan="1">26</td><td rowspan="1" colspan="1">13,0653</td><td rowspan="1" colspan="1">51</td><td rowspan="1" colspan="1">25,62</td><td rowspan="1" colspan="1">29</td><td rowspan="1" colspan="1">14,57</td><td rowspan="1" colspan="1">1</td></tr><tr><td rowspan="1" colspan="1">With spacing</td><td rowspan="1" colspan="1">5</td><td rowspan="1" colspan="1">0,93</td><td rowspan="1" colspan="1">2</td><td rowspan="1" colspan="1">40</td><td rowspan="1" colspan="1">2</td><td rowspan="1" colspan="1">40</td><td rowspan="1" colspan="1">1</td><td rowspan="1" colspan="1">20</td><td rowspan="1" colspan="1">1</td></tr></tbody></table></table-wrap><p>Legend: AnDMAn-dento-maxillar anomaly; ADI-isolated dental anomalies (single cause); CP-maxillar compresion syndrom with protrusion; CI- maxillar compresion syndrom with crowding; OI-crossbite; OD-open occlusion syndrom; OAA-deep bite syndrom; PA-true progenic syndrom; PF- false progenic syndrom; DDA-dento-alveolar disharmony.</p><p>The percentage of patients with DAD and crowding who accepted an orthodontic treatment starting was 74,87%, 12,75% of them presented a C type friable periodontium (Fig. <xref ref-type="fig" rid="F1">1</xref>,<xref ref-type="fig" rid="F2">2</xref>),in 15,43% there have been noticed gingival recessions more than 2mm (Fig. <xref ref-type="fig" rid="F3">3</xref>), and 27,51% presented chronic gingivitis (Fig.<xref ref-type="fig" rid="F4">4</xref>).</p><fig id="F1" orientation="portrait" position="float"><label>Fig.1</label><caption><p>P.M. female, 14 years old: a) intraoral - friable fine C type periodontium at low anterior teeth group; b)ortopantomography indicates the deletion of interdentally alveolar septs tops from 3.2 to 3.5</p></caption><graphic xlink:href="CHSJ-39-1-039-fig1a"><label>A</label></graphic><graphic xlink:href="CHSJ-39-1-039-fig1b"><label>B</label></graphic></fig><fig id="F2" orientation="portrait" position="float"><label>Fig.2</label><caption><p>N.M., male, 14 years old: A intraoral - the alveolar bone around the ectopic canines is thin; swollen and reddish-violet colour of the interdentally papilla between 3.2-3.3, because of the compression made by ectopic 3.3; B ortopantomography indicates the absence of lamina durra between 3.2-3.3 and 2.2-2.3 </p></caption><graphic xlink:href="CHSJ-39-1-039-fig2a"><label>A</label></graphic><graphic xlink:href="CHSJ-39-1-039-fig2b"><label>B</label></graphic></fig><fig id="F3" orientation="portrait" position="float"><label>Fig.3</label><caption><p>S.M., male, age 12 – gingival recession of 2 mm at 4.1 with tartar deposits on vestibular side of lower central incisors; interdentally papillae between 4.1-3.1 and 3.1-3.2 with lobulated aspect, with superior mamelonated part.</p></caption><graphic xlink:href="CHSJ-39-1-039-fig3"></graphic></fig><fig id="F4" orientation="portrait" position="float"><label>Fig.4</label><caption><p>G.C., male,10 years old –simple chronic gingivitis, interdental papillas with swollen aspect</p></caption><graphic xlink:href="CHSJ-39-1-039-fig4"></graphic></fig><p>At the end of the study, 55,04% of the patients were in different stages of treatment, and for 44,96% the treatment was finished. Data regarding the noticed periodontal modifications are presented in table <xref ref-type="table" rid="T2">2</xref>.</p><table-wrap id="T2" orientation="portrait" position="float"><label>Table 2</label><caption><p>The periodontal status of the patients with DAD who supported an orthodontic treatment or are still under the treatment</p></caption><table frame="hsides" rules="groups" border="1"><tr><td rowspan="3" colspan="1"><bold>Orthodontic treatment</bold></td><td colspan="3" rowspan="1"><bold>DMAn </bold></td><td colspan="12" rowspan="1"><bold>Periodontal status </bold></td></tr><tr><td colspan="2" rowspan="2"><bold>Type</bold></td><td rowspan="2" colspan="1"><bold>No</bold></td><td colspan="2" rowspan="1"><bold>No modifications</bold></td><td colspan="2" rowspan="1"><bold>C type periodontium</bold></td><td colspan="2" rowspan="1"><bold>CG</bold></td><td colspan="2" rowspan="1"><bold>HG</bold></td><td colspan="2" rowspan="1"><bold>GR (≥2mm)</bold></td><td colspan="2" rowspan="1"><bold>Gingival folds</bold></td></tr><tr><td rowspan="1" colspan="1">Nr</td><td rowspan="1" colspan="1">%</td><td rowspan="1" colspan="1">Nr</td><td rowspan="1" colspan="1">%</td><td rowspan="1" colspan="1">Nr</td><td rowspan="1" colspan="1">%</td><td rowspan="1" colspan="1">Nr</td><td rowspan="1" colspan="1">%</td><td rowspan="1" colspan="1">Nr</td><td rowspan="1" colspan="1">%</td><td rowspan="1" colspan="1">Nr</td><td rowspan="1" colspan="1">%</td></tr><tr><td rowspan="2" colspan="1"><bold> </bold></td><td rowspan="2" colspan="1">DDA</td><td rowspan="1" colspan="1">I</td><td rowspan="1" colspan="1">149</td><td rowspan="1" colspan="1">83</td><td rowspan="1" colspan="1">55,704</td><td rowspan="1" colspan="1">19</td><td rowspan="1" colspan="1">12,751</td><td rowspan="1" colspan="1">41</td><td rowspan="1" colspan="1">27,516</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">23</td><td rowspan="1" colspan="1">15,436</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td></tr><tr><td rowspan="1" colspan="1">S</td><td rowspan="1" colspan="1">3</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">1</td><td rowspan="1" colspan="1">33,33</td><td rowspan="1" colspan="1">1</td><td rowspan="1" colspan="1">33,33</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">1</td><td rowspan="1" colspan="1">33,33</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td></tr><tr><td rowspan="2" colspan="1"><bold>Ended</bold></td><td rowspan="2" colspan="1">DDA</td><td rowspan="1" colspan="1">I</td><td rowspan="1" colspan="1">67</td><td rowspan="1" colspan="1">25</td><td rowspan="1" colspan="1">37,31</td><td rowspan="1" colspan="1">9</td><td rowspan="1" colspan="1">13,432</td><td rowspan="1" colspan="1">17</td><td rowspan="1" colspan="1">25,373</td><td rowspan="1" colspan="1">15</td><td rowspan="1" colspan="1">22,388</td><td rowspan="1" colspan="1">6</td><td rowspan="1" colspan="1">8,955</td><td rowspan="1" colspan="1">5</td><td rowspan="1" colspan="1">7,462</td></tr><tr><td rowspan="1" colspan="1">S</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td></tr><tr><td rowspan="2" colspan="1"><bold>Not ended (intermediate state) </bold></td><td rowspan="2" colspan="1">DDA</td><td rowspan="1" colspan="1">I</td><td rowspan="1" colspan="1">82</td><td rowspan="1" colspan="1">37</td><td rowspan="1" colspan="1">45,12</td><td rowspan="1" colspan="1">4</td><td rowspan="1" colspan="1">4,878</td><td rowspan="1" colspan="1">23</td><td rowspan="1" colspan="1">28,04</td><td rowspan="1" colspan="1">9</td><td rowspan="1" colspan="1">10,97</td><td rowspan="1" colspan="1">11</td><td rowspan="1" colspan="1">13,41</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td></tr><tr><td rowspan="1" colspan="1">S</td><td rowspan="1" colspan="1">3</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">2</td><td rowspan="1" colspan="1">66,66</td><td rowspan="1" colspan="1">1</td><td rowspan="1" colspan="1">33,33</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">1</td><td rowspan="1" colspan="1">33,33</td><td rowspan="1" colspan="1">0</td><td rowspan="1" colspan="1">0</td></tr></table></table-wrap><p>There can be noticed that from the patients that are still receiving treatment, 28,04% present chronic gingivitis (Fig. <xref ref-type="fig" rid="F5">5</xref>, 13,41% gingival recessions and 10,97% gingival overgrowth (Fig. <xref ref-type="fig" rid="F6">6</xref>).</p><fig id="F5" orientation="portrait" position="float"><label>Fig.5</label><caption><p>S.M., male, after 1 year of treatment at age 13 - simple chronic gingivitis</p></caption><graphic xlink:href="CHSJ-39-1-039-fig5"></graphic></fig><fig id="F6" orientation="portrait" position="float"><label>Fig.6</label><caption><p>P.M. female, after 1 and ½ years of treatment at the age of 15 and ½ – hypertrophy of gingival papillae at 1.4-1.1, 4.1-4.3</p></caption><graphic xlink:href="CHSJ-39-1-039-fig6"></graphic></fig><p>For patients whose orthodontic treatment was finalized, the percentage of patients with maintenance of C type periodontium was 13,43%, of those with gingival recessions more that 2 mm of 8,95%. Gingival overgrowth was noticed in 22,38% of the cases (Fig. <xref ref-type="fig" rid="F7">7</xref>), and gingival folds appeared in 7,46% of the cases (Fig. <xref ref-type="fig" rid="F8">8</xref>).</p><fig id="F7" orientation="portrait" position="float"><label>Fig.7</label><caption><p>G.C., ♂, after 2 years of treatment, at age 12 – A intraoral - upper central incisors present discrete marginal gingival recessions ”V” type and gingival hypertrophy bimaxillary; B ortopantomography indicates an easy flattening of the interdentally septs between upper incisors and a reduction of bony cortical density between 1.1-2.1</p></caption><graphic xlink:href="CHSJ-39-1-039-fig7a"><label>A</label></graphic><graphic xlink:href="CHSJ-39-1-039-fig7b"><label>B</label></graphic></fig><fig id="F8" orientation="portrait" position="float"><label>Fig.8</label><caption><p>N.M., female, at 16 and ½ years old, after 2 and ½years of treatment – A intraoral - gingival fold between 3.5 and 3,3 and the presence of interdentally papillae hypertrophy between upper canines and second premolar, B ortopantomography does not indicates structural modifications of the alveolar bone</p></caption><graphic xlink:href="CHSJ-39-1-039-fig8a"><label>A</label></graphic><graphic xlink:href="CHSJ-39-1-039-fig8b"><label>B</label></graphic></fig></sec><sec><title>Discussions</title><p>The dento-alveolar incongruence correction after the orthodontic treatment in similar case as the ones before, may offer a bigger opportunity to these patients for a normal development of the periodontium by removing the occlusal interferences and by facilitating the oral cavity sanitization [<xref rid="B10" ref-type="bibr">10</xref>], beside the obviously aesthetic benefits. </p><p>The implications of DAD with crowding presence over the periodontal architecture are multiple. Most frequent it appears a C type periodontium after Korbendau and Guyomard (1992) [<xref rid="B9" ref-type="bibr">9</xref>], where the alveolar process is thin, the gingival edge is away from the ivory-cementum connection, with a 2 mm dehiscence, the gingival tissue is thin and tense, 2 mm high. Such type of periodontium may determine a gingival recession or a root denudation on teeth in vestibular-position (especially the central incisor, the lateral ones more rarely), due to the exceeding of the anatomical limits of the arches [<xref rid="B11" ref-type="bibr">11</xref>,<xref rid="B12" ref-type="bibr">12</xref>]. Around the teeth in vestibular-position, the alveolar bone is thin, sometimes with a dehiscence, the gingival ditch is less profound, and the resistance at mechanical stress during dental brushing is reduced [<xref rid="B11" ref-type="bibr">11</xref>]. A development happens towards inside of the alveolar mucosa for the teeth in vestibular ectopy (especially the canines). The explanation for this phenomenon is the impossibility of intrabony migration of the canine crown toward palatine side, behind the lateral incisor root, as a result of the lack of space. </p><p>When DAD treatment implies extraction for first premolars to gain necessary space for arches alignment, the canine recoil to the space obtained after extraction may lead to gingival invaginations or folds. After Robertson et al. (1977) [<xref rid="B13" ref-type="bibr">13</xref>] the canine recoil is followed at 35% of the patients by a gingival fissure, through epithelial invagination, resulting an interdentally string point at the scar extraction site. In 70% of the cases it will generate a simple ditch or a vestibular fold at the edentulous crest [<xref rid="B14" ref-type="bibr">14</xref>]. Botero et al. (2004) [<xref rid="B15" ref-type="bibr">15</xref>] showed that the canine recoil should take place slower and along a short distance if the patient has a thin periodontium, in order to prevent the negative effects. The ditches and folds can reduce or completely disappear with time [<xref rid="B16" ref-type="bibr">16</xref>].</p><p>Many of the harmful periodontal effects may be associated with the bacterial plaque accumulation because of the difficulty in maintaining a good oral hygiene in the presence of fix orthodontic appliance [<xref rid="B17" ref-type="bibr">17</xref>,<xref rid="B18" ref-type="bibr">18</xref>]. After Pozo and colab. 2011 [<xref rid="B19" ref-type="bibr">19</xref>], the onset of gingival inflammation after orthodontic appliances mount, especially the fix ones, unfortunately is a common thing, and the plaque accumulation on the fix orthodontic appliances components represents a way of destroying the periodontal tissues [<xref rid="B20" ref-type="bibr">20</xref>].</p><p>Another frequent problem noticed during orthodontic treatment, especially with fix appliances is the gingival overgrowth (hypertrophy and hyperplasia) [<xref rid="B21" ref-type="bibr">21</xref>]. The initiation and development of these gingival hypertrophies may be yhe cause of periodontal pathogens from the bacterial film on orthodontic appliance components and of the inflammatory citokines release (tipul IL-1β and TGF-β1) during orthodontic dental moves [<xref rid="B22" ref-type="bibr">22</xref>].</p><p>In most of the cases the gingival inflammations and hypertrophy are often transitional; they usually disappear in a few weeks after removing the fix orthodontic appliance [<xref rid="B23" ref-type="bibr">23</xref>.</p></sec><sec sec-type="conclusions"><title>Conclusions</title><p>1. The qualitative and quantitative evaluation of the sustaining tissues of the dental organ is essential, because this allows the patient integration in a therapeutic schedule adapted to periodontal morphology and to expected orthodontic and/or orthopaedic moves. </p><p>2. During the orthodontic treatment, a moved tooth along its alveolar process to sites with thin gingival and inflammation presents a high risk of marginal gingival recession appearance; space closure after extraction may also be accompanied by periodontal modifications, gingival invaginations and ditches.</p><p>3. An ideal leaning of the teeth gained after treatment is followed by the establishment of some correct contact points, a modelling of interdentally septs and papillae morphology, also of a new marginal gingival outline.</p><p>4. 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