Protraction of mandibular second and third molars into missing first molar spaces for a patient with an anterior open bite and anterior spacing
Identifieur interne : 001B87 ( Main/Exploration ); précédent : 001B86; suivant : 001B88Protraction of mandibular second and third molars into missing first molar spaces for a patient with an anterior open bite and anterior spacing
Auteurs : Un-Bong Baik ; Youn-Sic Chun [Corée du Sud] ; Min-Ho Jung [Corée du Sud] ; Junji SugawaraSource :
- American journal of orthodontics and dentofacial orthopedics [ 0889-5406 ] ; 2012.
Descripteurs français
- Pascal (Inist)
- Wicri :
- topic : Homme.
English descriptors
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Abstract
In a young woman, aged 18 years 8 months, who had an anterior open bite and anterior spacing, the right and left mandibular first molar extraction spaces were closed by protraction of the second and third molars without reciprocal retraction of the incisors and the premolars. The amounts of protraction for the second molars were 12 mm on the right side and 11 mm on the left side. Two miniscrews were inserted into the mesiobuccal side of the edentulous spaces, and 2 more screws were inserted into the anterior sites after removing previous miniscrews. In addition, 4 miniscrews were inserted into the buccal and palatal sides between the first and second maxillary molars to intrude the maxillary posterior teeth, which had extruded into the missing mandibular spaces. Careful biomechanical consideration was used to prevent extrusion of the molars and worsening of the anterior open bite from protraction of the posterior teeth. Ultimately, the anterior open bite was corrected by both intrusion of the maxillary molars and extrusion of the maxillary anterior teeth. Excellent occlusion and correction of the anterior open bite were achieved without tipping, rotation of the posterior teeth, or other problems. The right mandibular third molar, which had been impacted at the beginning of treatment, erupted into the second molar space and functioned properly. At the 1-year follow-up examination, the patient had a slight anterior open bite, but closure of the first molar extraction spaces was well maintained.
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wicri:level="4"><inist:fA14 i1="02"><s1>Department of Orthodontics, School of Dentistry, Seoul National University</s1><s2>Seoul</s2><s3>KOR</s3><sZ>3 aut.</sZ></inist:fA14><country>Corée du Sud</country><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region><settlement type="city">Séoul</settlement></placeName><orgName type="university">Université nationale de Séoul</orgName></affiliation></author><author><name sortKey="Sugawara, Junji" sort="Sugawara, Junji" uniqKey="Sugawara J" first="Junji" last="Sugawara">Junji Sugawara</name></author></titleStmt><publicationStmt><idno type="wicri:source">INIST</idno><idno type="inist">12-0268122</idno><date when="2012">2012</date><idno type="stanalyst">PASCAL 12-0268122 INIST</idno><idno type="RBID">Pascal:12-0268122</idno><idno type="wicri:Area/PascalFrancis/Corpus">000070</idno><idno type="wicri:Area/PascalFrancis/Curation">000628</idno><idno 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University, Mokdong Hospital</s1><s2>Seoul</s2><s3>KOR</s3><sZ>2 aut.</sZ></inist:fA14><country>Corée du Sud</country><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region></placeName></affiliation></author><author><name sortKey="Jung, Min Ho" sort="Jung, Min Ho" uniqKey="Jung M" first="Min-Ho" last="Jung">Min-Ho Jung</name><affiliation wicri:level="4"><inist:fA14 i1="02"><s1>Department of Orthodontics, School of Dentistry, Seoul National University</s1><s2>Seoul</s2><s3>KOR</s3><sZ>3 aut.</sZ></inist:fA14><country>Corée du Sud</country><placeName><settlement type="city">Séoul</settlement><region type="capital">Région capitale de Séoul</region><settlement type="city">Séoul</settlement></placeName><orgName type="university">Université nationale de Séoul</orgName></affiliation></author><author><name sortKey="Sugawara, Junji" sort="Sugawara, Junji" uniqKey="Sugawara J" first="Junji" last="Sugawara">Junji Sugawara</name></author></analytic><series><title level="j" type="main">American journal of orthodontics and dentofacial orthopedics</title><title level="j" type="abbreviated">Am. j. orthod. dentofac. orthop.</title><idno type="ISSN">0889-5406</idno><imprint><date when="2012">2012</date></imprint></series></biblStruct></sourceDesc><seriesStmt><title level="j" type="main">American journal of orthodontics and dentofacial orthopedics</title><title level="j" type="abbreviated">Am. j. orthod. dentofac. orthop.</title><idno type="ISSN">0889-5406</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Anterior</term><term>Anterior open bite</term><term>Dentistry</term><term>First molar</term><term>Human</term><term>Mandible</term><term>Orthodontic procedures</term><term>Second molar</term><term>Spacing</term><term>Third molar tooth</term></keywords><keywords scheme="Pascal" xml:lang="fr"><term>Mandibule</term><term>Deuxième molaire</term><term>Troisième molaire</term><term>Première molaire</term><term>Homme</term><term>Antérieur</term><term>Espacement</term><term>Orthodontie</term><term>Dentisterie</term><term>Béance antérieure</term></keywords><keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Homme</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In a young woman, aged 18 years 8 months, who had an anterior open bite and anterior spacing, the right and left mandibular first molar extraction spaces were closed by protraction of the second and third molars without reciprocal retraction of the incisors and the premolars. The amounts of protraction for the second molars were 12 mm on the right side and 11 mm on the left side. Two miniscrews were inserted into the mesiobuccal side of the edentulous spaces, and 2 more screws were inserted into the anterior sites after removing previous miniscrews. In addition, 4 miniscrews were inserted into the buccal and palatal sides between the first and second maxillary molars to intrude the maxillary posterior teeth, which had extruded into the missing mandibular spaces. Careful biomechanical consideration was used to prevent extrusion of the molars and worsening of the anterior open bite from protraction of the posterior teeth. Ultimately, the anterior open bite was corrected by both intrusion of the maxillary molars and extrusion of the maxillary anterior teeth. Excellent occlusion and correction of the anterior open bite were achieved without tipping, rotation of the posterior teeth, or other problems. The right mandibular third molar, which had been impacted at the beginning of treatment, erupted into the second molar space and functioned properly. At the 1-year follow-up examination, the patient had a slight anterior open bite, but closure of the first molar extraction spaces was well maintained.</div></front></TEI><affiliations><list><country><li>Corée du Sud</li></country><region><li>Région capitale de Séoul</li></region><settlement><li>Séoul</li></settlement><orgName><li>Université nationale de Séoul</li></orgName></list><tree><noCountry><name sortKey="Baik, Un Bong" sort="Baik, Un Bong" uniqKey="Baik U" first="Un-Bong" last="Baik">Un-Bong Baik</name><name sortKey="Sugawara, Junji" sort="Sugawara, Junji" uniqKey="Sugawara J" first="Junji" last="Sugawara">Junji Sugawara</name></noCountry><country name="Corée du Sud"><region name="Région capitale de Séoul"><name sortKey="Chun, Youn Sic" sort="Chun, Youn Sic" uniqKey="Chun Y" first="Youn-Sic" last="Chun">Youn-Sic Chun</name></region><name sortKey="Jung, Min Ho" sort="Jung, Min Ho" uniqKey="Jung M" first="Min-Ho" last="Jung">Min-Ho Jung</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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