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Article: Residual Ridge Dimensions at Edentulous Maxillary First Molar sites and Periodontal Bone loss among two ethnic cohorts seeking tooth replacement

TitleResidual Ridge Dimensions at Edentulous Maxillary First Molar sites and Periodontal Bone loss among two ethnic cohorts seeking tooth replacement
Authors
Issue Date2014
PublisherWiley-Blackwell Publishing, Inc. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CLR
Citation
Clinical Oral Implants Research, 2014, v. 25 n. 12, p. 1386-94 How to Cite?
AbstractOBJECTIVES: To study residual ridge dimensions at edentulous first molar sites in relation to periodontal bone loss among cohorts of partially edentulous Asian Indian and Hong Kong Chinese subjects seeking tooth replacement. MATERIALS AND METHODS: A total of 628 edentulous maxillary first molar sites were analyzed on Cone Beam Computed Tomography scans of 225 Asian Indian (I) and 232 Hong Kong Chinese (C) partially edentulous adults seeking tooth replacement. Age, ethnicity, gender, total tooth loss, the presence or absence of adjacent teeth, categories of periodontal status defined according to radiographic alveolar bone loss (P0: periodontal health, P1: incipient to moderate disease, P2: severe periodontal disease) and sinus membrane abnormalities were noted. Alveolar ridge height (RH), widths at 1 and 3 mm from crest (RW1; RW3), and relative position of the bone crest (RR) were measured. RESULTS: Prevalence of P2 status was most frequent in both cohorts(C: 50.4% I: 49.2%). P2 had lowest ridge heights; 13.1% C P2 and 14%I P2 had RH < 2 mm. Sites with both RH <8 mm and RW1 < 6 mm occurred at 59%C P2 and 68%I P2. Sinus membrane abnormalities were most frequent in P2. Periodontal status and sinus membrane abnormality increased the odds of RH <5 mm and RH <8 mm more than 2-fold; additionally, gender and ethnicity significantly impacted RH <8 mm. Gender and adjacent tooth status significantly affected RW1. CONCLUSION: Incident advanced periodontal disease was common among Asian Indian and Hong Kong Chinese subjects seeking tooth replacement and associated with lower available bone heights. Ethnicity, gender, sinus membrane thickening affected available bone height in the subsinus region, while the presence of adjacent teeth- and age-affected residual ridge width. © 2013 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.
Persistent Identifierhttp://hdl.handle.net/10722/200416
ISSN
2015 Impact Factor: 3.464
2015 SCImago Journal Rankings: 1.427
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorAcharya, A-
dc.contributor.authorHao, J-
dc.contributor.authorMattheos, N-
dc.contributor.authorChau, ACM-
dc.contributor.authorShirke, P-
dc.contributor.authorLang, NP-
dc.date.accessioned2014-08-21T06:45:17Z-
dc.date.available2014-08-21T06:45:17Z-
dc.date.issued2014-
dc.identifier.citationClinical Oral Implants Research, 2014, v. 25 n. 12, p. 1386-94-
dc.identifier.issn0905-7161-
dc.identifier.urihttp://hdl.handle.net/10722/200416-
dc.description.abstractOBJECTIVES: To study residual ridge dimensions at edentulous first molar sites in relation to periodontal bone loss among cohorts of partially edentulous Asian Indian and Hong Kong Chinese subjects seeking tooth replacement. MATERIALS AND METHODS: A total of 628 edentulous maxillary first molar sites were analyzed on Cone Beam Computed Tomography scans of 225 Asian Indian (I) and 232 Hong Kong Chinese (C) partially edentulous adults seeking tooth replacement. Age, ethnicity, gender, total tooth loss, the presence or absence of adjacent teeth, categories of periodontal status defined according to radiographic alveolar bone loss (P0: periodontal health, P1: incipient to moderate disease, P2: severe periodontal disease) and sinus membrane abnormalities were noted. Alveolar ridge height (RH), widths at 1 and 3 mm from crest (RW1; RW3), and relative position of the bone crest (RR) were measured. RESULTS: Prevalence of P2 status was most frequent in both cohorts(C: 50.4% I: 49.2%). P2 had lowest ridge heights; 13.1% C P2 and 14%I P2 had RH < 2 mm. Sites with both RH <8 mm and RW1 < 6 mm occurred at 59%C P2 and 68%I P2. Sinus membrane abnormalities were most frequent in P2. Periodontal status and sinus membrane abnormality increased the odds of RH <5 mm and RH <8 mm more than 2-fold; additionally, gender and ethnicity significantly impacted RH <8 mm. Gender and adjacent tooth status significantly affected RW1. CONCLUSION: Incident advanced periodontal disease was common among Asian Indian and Hong Kong Chinese subjects seeking tooth replacement and associated with lower available bone heights. Ethnicity, gender, sinus membrane thickening affected available bone height in the subsinus region, while the presence of adjacent teeth- and age-affected residual ridge width. © 2013 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.-
dc.languageeng-
dc.publisherWiley-Blackwell Publishing, Inc. The Journal's web site is located at http://www.blackwellpublishing.com/journals/CLR-
dc.relation.ispartofClinical Oral Implants Research-
dc.titleResidual Ridge Dimensions at Edentulous Maxillary First Molar sites and Periodontal Bone loss among two ethnic cohorts seeking tooth replacement-
dc.typeArticle-
dc.identifier.emailAcharya, A: aneesha@hku.hk-
dc.identifier.emailMattheos, N: mattheos@hku.hk-
dc.identifier.emailChau, ACM: ansonc@hkucc.hku.hk-
dc.identifier.emailLang, NP: nplang@hkucc.hku.hk-
dc.identifier.authorityMattheos, N=rp01662-
dc.identifier.authorityChau, ACM=rp00044-
dc.identifier.authorityLang, NP=rp00031-
dc.identifier.doi10.1111/clr.12292-
dc.identifier.pmid25283689-
dc.identifier.scopuseid_2-s2.0-84912019622-
dc.identifier.hkuros232880-
dc.identifier.volume25-
dc.identifier.issue12-
dc.identifier.spage1386-
dc.identifier.epage94-
dc.identifier.isiWOS:000345152600009-
dc.publisher.placeUnited States-

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