Open-flap versus minimally invasive esthetic crown lengthening: Systematic review and meta-analysis

Background: Esthetic crown lengthening is often performed to address excessive gingival display due to altered passive eruption. When bone reduction is required, most surgeons approach this procedure with an open flap approach. The aim of this systematic review and meta-analysis is to compare the ou...

Ամբողջական նկարագրություն

Մատենագիտական մանրամասներ
Հիմնական հեղինակներ: Blake Crosby, Mira Ghaly, Gregory Griffin, Brittany Ange, Ahmed R El-Awady
Ձևաչափ: Հոդված
Լեզու:English
Հրապարակվել է: Elsevier 2023-06-01
Շարք:Dentistry Review
Խորագրեր:
Առցանց հասանելիություն:http://www.sciencedirect.com/science/article/pii/S277255962300007X
_version_ 1827923201645084672
author Blake Crosby
Mira Ghaly
Gregory Griffin
Brittany Ange
Ahmed R El-Awady
author_facet Blake Crosby
Mira Ghaly
Gregory Griffin
Brittany Ange
Ahmed R El-Awady
author_sort Blake Crosby
collection DOAJ
description Background: Esthetic crown lengthening is often performed to address excessive gingival display due to altered passive eruption. When bone reduction is required, most surgeons approach this procedure with an open flap approach. The aim of this systematic review and meta-analysis is to compare the outcomes of an open flap versus a more conservative closed flap approach. Methods: An electronic search of Medline Pubmed and Cochrane library was conducted with “Does a flapless approach with piezoelectric to crown lengthening provide superior results than the traditional crown lengthening approach?” as the focused question. After reviewing the selected articles, the data was extracted to evaluate the relative gingival margin as the primary outcome variable. Statistical analysis was performed according to PRISMA guidelines for meta-analysis. Results: Out of 65 studies, 4 prospective randomized controlled clinical trials met the inclusion criteria and were included for further analysis. The estimated standard difference in means for all studies was 0.349 (95% CI: (0.133, 0.565), p = 0.002) indicating that the open flap had a larger change in gingival margin from baseline to 3 months than the flapless technique. The results of Cochran's Q concluded no evidence of heterogeneity (Cochran's Q = 4.745, d.f.=5, p-value=0.448). The funnel plots and fail-safe analyses concluded no evidence of publication bias. Conclusions: A minimally invasive closed flap approach using piezoelectric instruments, in the appropriate cases, seem to have better gingival margin stability at 3 months and excellent patient centered outcomes. Further well-designed studies are needed to shed more light on the validity of this technique.
first_indexed 2024-03-13T04:53:20Z
format Article
id doaj.art-35a76acb51c846ed8e76d8f29d5ab6a2
institution Directory Open Access Journal
issn 2772-5596
language English
last_indexed 2024-03-13T04:53:20Z
publishDate 2023-06-01
publisher Elsevier
record_format Article
series Dentistry Review
spelling doaj.art-35a76acb51c846ed8e76d8f29d5ab6a22023-06-18T05:04:16ZengElsevierDentistry Review2772-55962023-06-0132100069Open-flap versus minimally invasive esthetic crown lengthening: Systematic review and meta-analysisBlake Crosby0Mira Ghaly1Gregory Griffin2Brittany Ange3Ahmed R El-Awady4Department of Periodontics, Dental College of Georgia, Augusta University, Augusta, GA 30912, United StatesDepartment of Periodontics, Dental College of Georgia, Augusta University, Augusta, GA 30912, United StatesDepartment of General Dentistry, Dental College of Georgia, GA, United StatesDepartment of Population Health Sciences, Division of Biostatistics & Data Science, Medical College of Georgia, Augusta University, Augusta GA, United StatesDepartment of Periodontics, Dental College of Georgia, Augusta University, Augusta, GA 30912, United States; Corresponding author.Background: Esthetic crown lengthening is often performed to address excessive gingival display due to altered passive eruption. When bone reduction is required, most surgeons approach this procedure with an open flap approach. The aim of this systematic review and meta-analysis is to compare the outcomes of an open flap versus a more conservative closed flap approach. Methods: An electronic search of Medline Pubmed and Cochrane library was conducted with “Does a flapless approach with piezoelectric to crown lengthening provide superior results than the traditional crown lengthening approach?” as the focused question. After reviewing the selected articles, the data was extracted to evaluate the relative gingival margin as the primary outcome variable. Statistical analysis was performed according to PRISMA guidelines for meta-analysis. Results: Out of 65 studies, 4 prospective randomized controlled clinical trials met the inclusion criteria and were included for further analysis. The estimated standard difference in means for all studies was 0.349 (95% CI: (0.133, 0.565), p = 0.002) indicating that the open flap had a larger change in gingival margin from baseline to 3 months than the flapless technique. The results of Cochran's Q concluded no evidence of heterogeneity (Cochran's Q = 4.745, d.f.=5, p-value=0.448). The funnel plots and fail-safe analyses concluded no evidence of publication bias. Conclusions: A minimally invasive closed flap approach using piezoelectric instruments, in the appropriate cases, seem to have better gingival margin stability at 3 months and excellent patient centered outcomes. Further well-designed studies are needed to shed more light on the validity of this technique.http://www.sciencedirect.com/science/article/pii/S277255962300007XCrown lengtheningEsthetics periodontal surgeryPlasticSurgical proceduresMinimally invasive
spellingShingle Blake Crosby
Mira Ghaly
Gregory Griffin
Brittany Ange
Ahmed R El-Awady
Open-flap versus minimally invasive esthetic crown lengthening: Systematic review and meta-analysis
Dentistry Review
Crown lengthening
Esthetics periodontal surgery
Plastic
Surgical procedures
Minimally invasive
title Open-flap versus minimally invasive esthetic crown lengthening: Systematic review and meta-analysis
title_full Open-flap versus minimally invasive esthetic crown lengthening: Systematic review and meta-analysis
title_fullStr Open-flap versus minimally invasive esthetic crown lengthening: Systematic review and meta-analysis
title_full_unstemmed Open-flap versus minimally invasive esthetic crown lengthening: Systematic review and meta-analysis
title_short Open-flap versus minimally invasive esthetic crown lengthening: Systematic review and meta-analysis
title_sort open flap versus minimally invasive esthetic crown lengthening systematic review and meta analysis
topic Crown lengthening
Esthetics periodontal surgery
Plastic
Surgical procedures
Minimally invasive
url http://www.sciencedirect.com/science/article/pii/S277255962300007X
work_keys_str_mv AT blakecrosby openflapversusminimallyinvasiveestheticcrownlengtheningsystematicreviewandmetaanalysis
AT miraghaly openflapversusminimallyinvasiveestheticcrownlengtheningsystematicreviewandmetaanalysis
AT gregorygriffin openflapversusminimallyinvasiveestheticcrownlengtheningsystematicreviewandmetaanalysis
AT brittanyange openflapversusminimallyinvasiveestheticcrownlengtheningsystematicreviewandmetaanalysis
AT ahmedrelawady openflapversusminimallyinvasiveestheticcrownlengtheningsystematicreviewandmetaanalysis