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Comparison of the Clinical Biological Width with the Published Standard Histologic Mean Values

AIMS AND OBJECTIVES: Biologic width (BW) as defined by Cohen is the part of the supracrestal gingival tissues that occupy the space between the base of the gingival crevice and the alveolar crest; it includes the junctional epithelium and the connective tissue element. Interactions between dental cr...

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Autores principales: Hamasni, Fatme Mouchref, El Hajj, Fady
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications & Media Pvt Ltd 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5629855/
https://www.ncbi.nlm.nih.gov/pubmed/29026699
http://dx.doi.org/10.4103/jispcd.JISPCD_261_17
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author Hamasni, Fatme Mouchref
El Hajj, Fady
author_facet Hamasni, Fatme Mouchref
El Hajj, Fady
author_sort Hamasni, Fatme Mouchref
collection PubMed
description AIMS AND OBJECTIVES: Biologic width (BW) as defined by Cohen is the part of the supracrestal gingival tissues that occupy the space between the base of the gingival crevice and the alveolar crest; it includes the junctional epithelium and the connective tissue element. Interactions between dental crowns and the marginal periodontal tissues analyzed in many review papers concluded that the recognition of the BW, in terms of crown margin placement, is beneficial for periodontal health. Therefore, knowledge of the dimensions of the sum of the junctional epithelium and connective tissue attachment as well as the sulcus depth (SD) is of clinical relevance. The aim of the study is to compare the average SD and BW clinically measured around teeth with the standard application of a mean value of 0.69 mm and 2.04 mm, respectively, found by Gargiulo et al.in a histological study on cadavers. MATERIALS AND METHODS: Forty-two healthy patients with age ranging from 20 to 50 years presented to the Multidisciplinary Department at the Lebanese University. A total of 504 tooth sites of 126 teeth were selected and measured by two periodontists. All measurements were done on teeth requiring infiltration anesthesia for surgical, restorative, or endodontic procedures on neighboring tooth/teeth, which eliminate any ethical concerns. The SD and the distance from gingival margin to bone crest at four sites per tooth; mesial, midbuccal, distal, and midlingual/palatal were measured. Clinical, BW was calculated by subtracting SD from the distance between gingival margin to bone crest. STATISTICAL ANALYSIS: Friedman's ANOVA test, independent samples t-tests, and one-sample t-tests were applied. The IBM(®) SPSS(®) statistics 20.0 statistical package was used to carry out all statistical analyses. RESULTS: The BW is statistically significantly lower than the value stated by Gargiulo et al. (2.04 mm) with a mean value of 1.13 mm, whereas the SD is statistically significantly greater than the value stated by Gargiulo et al. (0.69 mm) with a mean value of 1.96 mm. CONCLUSION: It can be concluded that there is a need to create a patient/site-specific distance from the proposed margin of the restoration to the bone crest when restoring subgingivally fractured or carious teeth. This leads to more stable and healthy tissues when performing crown lengthening procedures. Therefore, using the term clinical, BW is more reliable and it should be used to reestablish stability and integrity of periodontal tissues around restored teeth.
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spelling pubmed-56298552017-10-12 Comparison of the Clinical Biological Width with the Published Standard Histologic Mean Values Hamasni, Fatme Mouchref El Hajj, Fady J Int Soc Prev Community Dent Original Article AIMS AND OBJECTIVES: Biologic width (BW) as defined by Cohen is the part of the supracrestal gingival tissues that occupy the space between the base of the gingival crevice and the alveolar crest; it includes the junctional epithelium and the connective tissue element. Interactions between dental crowns and the marginal periodontal tissues analyzed in many review papers concluded that the recognition of the BW, in terms of crown margin placement, is beneficial for periodontal health. Therefore, knowledge of the dimensions of the sum of the junctional epithelium and connective tissue attachment as well as the sulcus depth (SD) is of clinical relevance. The aim of the study is to compare the average SD and BW clinically measured around teeth with the standard application of a mean value of 0.69 mm and 2.04 mm, respectively, found by Gargiulo et al.in a histological study on cadavers. MATERIALS AND METHODS: Forty-two healthy patients with age ranging from 20 to 50 years presented to the Multidisciplinary Department at the Lebanese University. A total of 504 tooth sites of 126 teeth were selected and measured by two periodontists. All measurements were done on teeth requiring infiltration anesthesia for surgical, restorative, or endodontic procedures on neighboring tooth/teeth, which eliminate any ethical concerns. The SD and the distance from gingival margin to bone crest at four sites per tooth; mesial, midbuccal, distal, and midlingual/palatal were measured. Clinical, BW was calculated by subtracting SD from the distance between gingival margin to bone crest. STATISTICAL ANALYSIS: Friedman's ANOVA test, independent samples t-tests, and one-sample t-tests were applied. The IBM(®) SPSS(®) statistics 20.0 statistical package was used to carry out all statistical analyses. RESULTS: The BW is statistically significantly lower than the value stated by Gargiulo et al. (2.04 mm) with a mean value of 1.13 mm, whereas the SD is statistically significantly greater than the value stated by Gargiulo et al. (0.69 mm) with a mean value of 1.96 mm. CONCLUSION: It can be concluded that there is a need to create a patient/site-specific distance from the proposed margin of the restoration to the bone crest when restoring subgingivally fractured or carious teeth. This leads to more stable and healthy tissues when performing crown lengthening procedures. Therefore, using the term clinical, BW is more reliable and it should be used to reestablish stability and integrity of periodontal tissues around restored teeth. Medknow Publications & Media Pvt Ltd 2017 2017-09-18 /pmc/articles/PMC5629855/ /pubmed/29026699 http://dx.doi.org/10.4103/jispcd.JISPCD_261_17 Text en Copyright: © 2017 Journal of International Society of Preventive and Community Dentistry http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open access article distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as the author is credited and the new creations are licensed under the identical terms.
spellingShingle Original Article
Hamasni, Fatme Mouchref
El Hajj, Fady
Comparison of the Clinical Biological Width with the Published Standard Histologic Mean Values
title Comparison of the Clinical Biological Width with the Published Standard Histologic Mean Values
title_full Comparison of the Clinical Biological Width with the Published Standard Histologic Mean Values
title_fullStr Comparison of the Clinical Biological Width with the Published Standard Histologic Mean Values
title_full_unstemmed Comparison of the Clinical Biological Width with the Published Standard Histologic Mean Values
title_short Comparison of the Clinical Biological Width with the Published Standard Histologic Mean Values
title_sort comparison of the clinical biological width with the published standard histologic mean values
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5629855/
https://www.ncbi.nlm.nih.gov/pubmed/29026699
http://dx.doi.org/10.4103/jispcd.JISPCD_261_17
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