Effect of mucosa thicknesses on stress distribution of implant-supported overdentures under unilateral loading: Photoelastic analysis

Özyılmaz, Özgün Yusuf; Aykent, Filiz; Sayın Özel, Gülsüm

Effect of mucosa thicknesses on stress distribution of implant-supported overdentures under unilateral loading: Photoelastic analysis

dc.authorid	0000-0001-8833-5259
dc.contributor.author	Özyılmaz, Özgün Yusuf
dc.contributor.author	Aykent, Filiz
dc.contributor.author	Sayın Özel, Gülsüm
dc.date.accessioned	2019-12-24T06:20:05Z
dc.date.available	2019-12-24T06:20:05Z
dc.date.issued	2019
dc.department	İstanbul Medipol Üniversitesi, Diş Hekimliği Fakültesi, Protetik Diş Tedavisi Ana Bilim Dalı
dc.description.abstract	Introduction: The aim of this study was to evaluate the effect of different heights of attachment and mucosa thicknesses on the stress distribution of two implant-retained mandibular overdenture designs under loading using the photoelastic stress analysis method. Materials and methods: Six photoelastic models of an edentulous mandibula were fabricated with two solitary implants that were placed in the canine regions. The attachment systems studied were ball and locator stud attachments. Both the ball and locator groups included three models that had different residual ridge heights so as to provide different mucosa thicknesses (1 mm-1 mm, 1 mm-2 mm, 1 mm-4 mm). A static vertical force of 135 N was applied unilaterally (each on the right then the left side) to the central fossa of the first molars. Models were positioned in the field of a circular polariscope to observe the distribution of isochromatic fringes around the implants and the interimplant areas under loading. The photoelastic stress fringes were monitored and recorded photographically. Results: The ball attachment groups showed higher stress values than did the locator groups under loading. Both attachment systems produced the lowest stress values in stimulated 1 mm-1 mm mucosa thickness models. The models with 1 mm-2 mm mucosa thicknesses showed higher stress values than did other models for both attachment systems. The highest stress value observed around both attachment systems was the moderate level in all test models. Conclusion: In different height mucosa thicknesses, locator attachment models distributed the load to the other side of the implant and its surrounding tissue, whereas the ball attachment did not. Regardless of mucosal thickness and attachment type, the implant on the loading side was subjected to the highest stress concentration.
dc.description.sponsorship	Selcuk University	en_US
dc.identifier.citation	Özyılmaz, Ö. Y., Aykent, F. ve Sayın Özel, G. (2019). Effect of mucosa thicknesses on stress distribution of implant-supported overdentures under unilateral loading: Photoelastic analysis. Journal Of Applied Biomaterials & Functional Materials, 17(4). https://doi.org/10.1177/2280800019882645
dc.identifier.doi	10.1177/2280800019882645
dc.identifier.issn	2280-8000
dc.identifier.issue	4
dc.identifier.scopusquality	Q3
dc.identifier.uri	https://doi.org/10.1177/2280800019882645
dc.identifier.uri	https://hdl.handle.net/20.500.12511/4627
dc.identifier.volume	17
dc.identifier.wosquality	Q3
dc.indekslendigikaynak	Web of Science
dc.indekslendigikaynak	Scopus
dc.indekslendigikaynak	PubMed
dc.language.iso	en
dc.publisher	SAGE Publications
dc.relation.ispartof	Journal Of Applied Biomaterials & Functional Materials	en_US
dc.relation.publicationcategory	Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rights	Attribution-NonCommercial 4.0 International	*
dc.rights	info:eu-repo/semantics/openAccess
dc.rights.uri	https://www.creativecommons.org/licenses/by-nc/4.0/	*
dc.subject	Solitary Implants
dc.subject	Photoelastic Analysis
dc.subject	Mucosa Thickness
dc.subject	Abutment Height
dc.subject	Stress Aistribution
dc.title	Effect of mucosa thicknesses on stress distribution of implant-supported overdentures under unilateral loading: Photoelastic analysis
dc.type	Article