The purpose of this review was to evaluate the periodontal and peri-implant tissue responses to restorative
approaches with and without cervical finish line on teeth and dental implants. An electronic search
was performed in PubMed/MEDLINE, Embase, Cochrane Library, LILACS, Web of Science, and Scopus
databases, and in the gray literature. Controlled clinical trials and prospective cohort studies were
included. Analyzed outcomes included gingival index (GI), bleeding on probing (BOP), probing depth
(PD), gingival thickness (GT), marginal stability (MS), and marginal bone loss (MBL). A meta-analysis
was then performed in two parts: the first compared results of restorations on teeth with and without
cervical finish line, and the second compared results of restorations on implant abutments with and
without cervical finish line. Regarding the tooth-based restoration analysis, 7 out of 1,388 selected articles
were included in the systematic review, and 2 were selected for the meta-analysis. For implantbased
restorations on abutments with and without cervical finish line, 6 out of 707 selected articles
were included in the systematic review, and 2 in the meta-analysis. No significant differences in periodontal
and peri implant indexes were identified between both prosthetic approaches in situations with
and without cervical finish lines.
Schlagwörter: Dental prosthesis; Prosthodontic tooth preparation; Dental implant-abutment design; Periodontium; Systematic review; Meta-analysis.