RT Journal Article
T1 Clinical outcomes of the biologically oriented preparation technique (BOPT) in fixed dental prostheses: A systematic review
A1 Abad-Coronel, Cristian
A1 Villacís Manosalvas, Jennifer
A1 Palacio Sarmiento, Carolina
A1 Esquivel, J
A1 Loi, I
A1 Pradíes Ramiro, Guillermo Jesús
AB Statement of problemThe biologically oriented preparation technique is a concept with a vertical tooth preparation, gingitage, an immediate interim restoration preserving the clot, and a specific laboratory technique aiming to adapt the marginal periodontal tissue to a remodeled emergence profile of the crown. However, the published scientific evidence on this subject is limited.PurposeThe purpose of this systematic review was to analyze whether using the biologically oriented preparation technique leads to improved clinical outcomes in terms of probing depth, gingival inflammation index, gingival marginal stability, and fewer mechanical and biological complications.Material and methodsRecommendations from the preferred reporting items for systematic reviews and meta-analyses (PRISMA) guidelines were used in this systematic review. An electronic search of the MEDLINE/PubMed, EMBASE, Science Direct, Wiley Online Library, Cochrane, and ProQuest databases was made for articles published between March 2010 and July 2021 using keywords. Three reviewers selected and analyzed all articles that mentioned the biologically oriented preparation technique and met the inclusion criteria.ResultsA total of 6 articles met the inclusion criteria: 1 prospective randomized clinical study, 1 randomized clinical study, 1 prospective clinical study, and 3 case series. According to these studies, of all the teeth treated with the biologically oriented preparation technique, probing depth (greater than 3 mm) increased in only 2.3%, gingival inflammation was present in 22.8%, gingival recession occurred in 1.7% (decreased gingival stability), and mechanical and biological failures occurred in 4.4% of the teeth.ConclusionsFixed dental prosthesis treatments performed following the concept of the biologically oriented preparation technique did not increase probing depth and showed a moderate rate of gingival inflammation, lower recession rates, and lower mechanical and biological failures at the 5-year follow-up. The biologically oriented preparation technique appears to be a viable alternative technique for obtaining satisfactory and stable clinical results up to 5 years. Long-term randomized clinical trials are recommended to reach more conclusions about this protocol.
PB Elsevier
SN 0022-3913
YR 2024
FD 2024-09
LK https://hdl.handle.net/20.500.14352/131160
UL https://hdl.handle.net/20.500.14352/131160
LA eng
NO Abad-Coronel C, Villacís Manosalvas J, Palacio Sarmiento C, Esquivel J, Loi I, Pradíes G. Clinical outcomes of the biologically oriented preparation technique (BOPT) in fixed dental prostheses: A systematic review. J Prosthet Dent. 2024 Sep;132(3):502-508. doi: 10.1016/j.prosdent.2022.07.010
NO Clinical ImplicationsThe biologically oriented preparation technique concept applied in certain clinical situations should be substantiated on a scientific basis when applied clinically as a suitable therapy for the integration of the tooth preparation, the periodontal tissue, and the restoration.
DS Docta Complutense
RD 26 feb 2026