Bone dimensions in the posterior mandible: a retrospective radiographic study using cone beam computed tomography. Part 2--analysis of edentulous sites.
Identifieur interne : 011620 ( Main/Exploration ); précédent : 011619; suivant : 011621Bone dimensions in the posterior mandible: a retrospective radiographic study using cone beam computed tomography. Part 2--analysis of edentulous sites.
Auteurs : Vedrana Braut ; Michael M. Bornstein ; Ulrike Kuchler ; Daniel BuserSource :
- The International journal of periodontics & restorative dentistry [ 1945-3388 ]
Descripteurs français
- KwdFr :
- MESH :
- anatomie et histologie : Mandibule.
- imagerie diagnostique : Bouche édentée, Mandibule.
- Humains, Tomodensitométrie à faisceau conique, Études rétrospectives.
English descriptors
- KwdEn :
- MESH :
- anatomy & histology : Mandible.
- diagnostic imaging : Mandible, Mouth, Edentulous.
- Cone-Beam Computed Tomography, Humans, Retrospective Studies.
Abstract
A precise radiographic evaluation of the local bone dimensions and morphology is important for preoperative planning of implant placement. The purpose of this retrospective study was to analyze dimensions and morphology of edentulous sites in the posterior mandible using cone beam computed tomography (CBCT) images. This retrospective radiographic study measured the bone width (BW) of the mandible at three locations on CBCT scans for premolars (PM1, PM2) and molars (M1, M2): at 1 mm and 4 mm below the most cranial point of the alveolar crest (BW1, BW2) and at the superior border of the mandibular canal (BW3). Furthermore, the height (H) of the alveolar process (distance between the measuring points BW1 and BW3), as well as the presence of lingual undercuts, were analyzed. A total of 56 CBCTs met the inclusion criteria, resulting in a sample size of 127 cross sections. There was a statistically significant increase from PM1 to M2 for the BW2 (P < .001), which was not present for BW1 and BW3 values. For the height of the alveolar process, the values exhibited a decrease from PM1 to M2 sites. Sex was a statistically significant parameter for H (P = .001) and for BW1 (P = .03). Age was not a statistically significant parameter for bone width (BW1: P = .37; BW2: P = .31; BW3: P = .51) or for the height of the alveolar process (P = .41) in the posterior mandible. Overall, 73 (57.5%) edentulous sites were evaluated to be without visible lingual undercuts; 13 (10.2%) sites exhibited lingual undercuts classified as influential for implant placement. Precise evaluation of the alveolar crest by cross-sectional imaging is of great value to analyze vertical and buccolingual bone dimensions in different locations in the posterior mandible. In addition, CBCTs are valuable to diagnosing the presence of and potential problems caused by lingual undercuts prior to implant placement.
PubMed: 25171034
Affiliations:
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Bornstein</name></author><author><name sortKey="Kuchler, Ulrike" sort="Kuchler, Ulrike" uniqKey="Kuchler U" first="Ulrike" last="Kuchler">Ulrike Kuchler</name></author><author><name sortKey="Buser, Daniel" sort="Buser, Daniel" uniqKey="Buser D" first="Daniel" last="Buser">Daniel Buser</name></author></titleStmt><publicationStmt><idno type="wicri:source">PubMed</idno><date when="????"><PubDate><MedlineDate>2014 Sep-Oct</MedlineDate></PubDate></date><idno type="RBID">pubmed:25171034</idno><idno type="pmid">25171034</idno><idno type="wicri:Area/PubMed/Corpus">000722</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Corpus" wicri:corpus="PubMed">000722</idno><idno type="wicri:Area/PubMed/Curation">000722</idno><idno type="wicri:explorRef" wicri:stream="PubMed" wicri:step="Curation">000722</idno><idno type="wicri:Area/PubMed/Checkpoint">000722</idno><idno type="wicri:explorRef" wicri:stream="Checkpoint" wicri:step="PubMed">000722</idno><idno type="wicri:Area/Ncbi/Merge">005399</idno><idno type="wicri:Area/Ncbi/Curation">005399</idno><idno type="wicri:Area/Ncbi/Checkpoint">005399</idno><idno type="wicri:Area/Main/Merge">012048</idno><idno type="wicri:Area/Main/Curation">011620</idno><idno type="wicri:Area/Main/Exploration">011620</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Bone dimensions in the posterior mandible: a retrospective radiographic study using cone beam computed tomography. Part 2--analysis of edentulous sites.</title><author><name sortKey="Braut, Vedrana" sort="Braut, Vedrana" uniqKey="Braut V" first="Vedrana" last="Braut">Vedrana Braut</name></author><author><name sortKey="Bornstein, Michael M" sort="Bornstein, Michael M" uniqKey="Bornstein M" first="Michael M" last="Bornstein">Michael M. Bornstein</name></author><author><name sortKey="Kuchler, Ulrike" sort="Kuchler, Ulrike" uniqKey="Kuchler U" first="Ulrike" last="Kuchler">Ulrike Kuchler</name></author><author><name sortKey="Buser, Daniel" sort="Buser, Daniel" uniqKey="Buser D" first="Daniel" last="Buser">Daniel Buser</name></author></analytic><series><title level="j">The International journal of periodontics & restorative dentistry</title><idno type="eISSN">1945-3388</idno></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cone-Beam Computed Tomography</term><term>Humans</term><term>Mandible (anatomy & histology)</term><term>Mandible (diagnostic imaging)</term><term>Mouth, Edentulous (diagnostic imaging)</term><term>Retrospective Studies</term></keywords><keywords scheme="KwdFr" xml:lang="fr"><term>Bouche édentée (imagerie diagnostique)</term><term>Humains</term><term>Mandibule (anatomie et histologie)</term><term>Mandibule (imagerie diagnostique)</term><term>Tomodensitométrie à faisceau conique</term><term>Études rétrospectives</term></keywords><keywords scheme="MESH" qualifier="anatomie et histologie" xml:lang="fr"><term>Mandibule</term></keywords><keywords scheme="MESH" qualifier="anatomy & histology" xml:lang="en"><term>Mandible</term></keywords><keywords scheme="MESH" qualifier="diagnostic imaging" xml:lang="en"><term>Mandible</term><term>Mouth, Edentulous</term></keywords><keywords scheme="MESH" qualifier="imagerie diagnostique" xml:lang="fr"><term>Bouche édentée</term><term>Mandibule</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Cone-Beam Computed Tomography</term><term>Humans</term><term>Retrospective Studies</term></keywords><keywords scheme="MESH" xml:lang="fr"><term>Humains</term><term>Tomodensitométrie à faisceau conique</term><term>Études rétrospectives</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">A precise radiographic evaluation of the local bone dimensions and morphology is important for preoperative planning of implant placement. The purpose of this retrospective study was to analyze dimensions and morphology of edentulous sites in the posterior mandible using cone beam computed tomography (CBCT) images. This retrospective radiographic study measured the bone width (BW) of the mandible at three locations on CBCT scans for premolars (PM1, PM2) and molars (M1, M2): at 1 mm and 4 mm below the most cranial point of the alveolar crest (BW1, BW2) and at the superior border of the mandibular canal (BW3). Furthermore, the height (H) of the alveolar process (distance between the measuring points BW1 and BW3), as well as the presence of lingual undercuts, were analyzed. A total of 56 CBCTs met the inclusion criteria, resulting in a sample size of 127 cross sections. There was a statistically significant increase from PM1 to M2 for the BW2 (P < .001), which was not present for BW1 and BW3 values. For the height of the alveolar process, the values exhibited a decrease from PM1 to M2 sites. Sex was a statistically significant parameter for H (P = .001) and for BW1 (P = .03). Age was not a statistically significant parameter for bone width (BW1: P = .37; BW2: P = .31; BW3: P = .51) or for the height of the alveolar process (P = .41) in the posterior mandible. Overall, 73 (57.5%) edentulous sites were evaluated to be without visible lingual undercuts; 13 (10.2%) sites exhibited lingual undercuts classified as influential for implant placement. Precise evaluation of the alveolar crest by cross-sectional imaging is of great value to analyze vertical and buccolingual bone dimensions in different locations in the posterior mandible. In addition, CBCTs are valuable to diagnosing the presence of and potential problems caused by lingual undercuts prior to implant placement.</div></front></TEI><affiliations><list></list><tree><noCountry><name sortKey="Bornstein, Michael M" sort="Bornstein, Michael M" uniqKey="Bornstein M" first="Michael M" last="Bornstein">Michael M. Bornstein</name><name sortKey="Braut, Vedrana" sort="Braut, Vedrana" uniqKey="Braut V" first="Vedrana" last="Braut">Vedrana Braut</name><name sortKey="Buser, Daniel" sort="Buser, Daniel" uniqKey="Buser D" first="Daniel" last="Buser">Daniel Buser</name><name sortKey="Kuchler, Ulrike" sort="Kuchler, Ulrike" uniqKey="Kuchler U" first="Ulrike" last="Kuchler">Ulrike Kuchler</name></noCountry></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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