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Article: Long-term clinical evaluation of 211 two-unit cantilevered resin-bonded fixed partial dentures

TitleLong-term clinical evaluation of 211 two-unit cantilevered resin-bonded fixed partial dentures
Authors
KeywordsRetention
Resin-bonded fixed partial denture
Cantilever prosthesis
Survival
Success
Resin-bonded bridges
Issue Date2014
Citation
Journal of Dentistry, 2014, v. 42 n. 7, p. 778-784 How to Cite?
AbstractAbstract Objectives This retrospective study aims to evaluate the long term clinical performance of two-unit cantilevered resin-bonded fixed partial dentures (RBFPDs) relating to their retention, success and survival rate. Materials and methods Prostheses that were placed at least four years previously were clinically reviewed to evaluate retention, success and survival rate. Additional information was also collected, including patient's gender, age and satisfaction on their prosthesis, operator's experience, prosthesis service life, root canal therapy if performed, abutment mobility, bone support, the presence of shim-stock contacts on the abutment or pontic in intercuspal position, and the presence of proximal axial contacts adjacent to the prosthesis. The date of any debonding with subsequent treatment was also recorded. Results A total of 211 two-unit RBFPDs were placed in 153 patients, with a mean service life of 113.2 ± 33.5 months. Twenty-eight prostheses debonded, resulting in a retention rate of 86.7 percent, and another five teeth were extracted with the prostheses, resulting in a success rate of 84.4 percent. 90.0 percent prostheses were functioning (survival rate) by means of rebonding at the time of review. The location of the replaced tooth had a significant effect on the retention of RBFPDs with posterior RBFPDs lower than anterior (p = 0.020). Kaplan–Meier analysis revealed 5-, 10- and 15-year cumulative probability of surviving was 0.97, 0.91 and 0.84, respectively. Conclusions 211 two-unit RBFPDs were observed to have a success, retention and survival rate of 84.4, 86.7 and 90.0 percent, respectively, with a mean service life of 9.4 years. Clinical Significance Based on the clinical results, two-unit RBFPD are shown to be a durable prosthesis over the long term with high patient satisfaction. The posterior prostheses, particularly in the lower arch appeared to have a higher failure rate, and improved design features should be considered.
Persistent Identifierhttp://hdl.handle.net/10722/200425
ISSN
2015 Impact Factor: 3.109
2015 SCImago Journal Rankings: 1.029
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorBotelho, MGen_US
dc.contributor.authorMa, Xen_US
dc.contributor.authorCheung, GJKen_US
dc.contributor.authorLaw, RSKen_US
dc.contributor.authorMeier, TCTen_US
dc.contributor.authorLam, WYHen_US
dc.date.accessioned2014-08-21T06:45:18Z-
dc.date.available2014-08-21T06:45:18Z-
dc.date.issued2014en_US
dc.identifier.citationJournal of Dentistry, 2014, v. 42 n. 7, p. 778-784en_US
dc.identifier.issn0300-5712-
dc.identifier.urihttp://hdl.handle.net/10722/200425-
dc.description.abstractAbstract Objectives This retrospective study aims to evaluate the long term clinical performance of two-unit cantilevered resin-bonded fixed partial dentures (RBFPDs) relating to their retention, success and survival rate. Materials and methods Prostheses that were placed at least four years previously were clinically reviewed to evaluate retention, success and survival rate. Additional information was also collected, including patient's gender, age and satisfaction on their prosthesis, operator's experience, prosthesis service life, root canal therapy if performed, abutment mobility, bone support, the presence of shim-stock contacts on the abutment or pontic in intercuspal position, and the presence of proximal axial contacts adjacent to the prosthesis. The date of any debonding with subsequent treatment was also recorded. Results A total of 211 two-unit RBFPDs were placed in 153 patients, with a mean service life of 113.2 ± 33.5 months. Twenty-eight prostheses debonded, resulting in a retention rate of 86.7 percent, and another five teeth were extracted with the prostheses, resulting in a success rate of 84.4 percent. 90.0 percent prostheses were functioning (survival rate) by means of rebonding at the time of review. The location of the replaced tooth had a significant effect on the retention of RBFPDs with posterior RBFPDs lower than anterior (p = 0.020). Kaplan–Meier analysis revealed 5-, 10- and 15-year cumulative probability of surviving was 0.97, 0.91 and 0.84, respectively. Conclusions 211 two-unit RBFPDs were observed to have a success, retention and survival rate of 84.4, 86.7 and 90.0 percent, respectively, with a mean service life of 9.4 years. Clinical Significance Based on the clinical results, two-unit RBFPD are shown to be a durable prosthesis over the long term with high patient satisfaction. The posterior prostheses, particularly in the lower arch appeared to have a higher failure rate, and improved design features should be considered.en_US
dc.languageengen_US
dc.relation.ispartofJournal of Dentistryen_US
dc.subjectRetention-
dc.subjectResin-bonded fixed partial denture-
dc.subjectCantilever prosthesis-
dc.subjectSurvival-
dc.subjectSuccess-
dc.subjectResin-bonded bridges-
dc.titleLong-term clinical evaluation of 211 two-unit cantilevered resin-bonded fixed partial denturesen_US
dc.typeArticleen_US
dc.identifier.emailBotelho, MG: botelho@hkucc.hku.hken_US
dc.identifier.emailMa, X: maxm1985@hku.hken_US
dc.identifier.emailCheung, GJK: jkgeorge@hku.hken_US
dc.identifier.authorityBotelho, MG=rp00033en_US
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.jdent.2014.02.004en_US
dc.identifier.pmid24685984-
dc.identifier.scopuseid_2-s2.0-84902175180-
dc.identifier.hkuros233325en_US
dc.identifier.volume42en_US
dc.identifier.issue7-
dc.identifier.spage778en_US
dc.identifier.epage784en_US
dc.identifier.isiWOS:000338401400003-

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