Effects of the Presence of Adjacent Tooth and Material Type on the Marginal and Internal Adaptation of Endocrowns Fabricated by the Digital Impression Technique

ABSTRACT Purpose To assess the effects of the presence of adjacent tooth and material type on the marginal and internal adaptation of endocrowns fabricated by the digital impression technique. Material and Methods An endodontically treated molar tooth was used for the fabrication of endocrowns in th...

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Main Authors: Mehran Falahchai, Fatemeh Razavi Ardekani, Naghme Musapoor, Yasamin Babaee Hemmati, Hamid Neshandar Asli
Format: Article
Language:English
Published: Wiley 2025-02-01
Series:Clinical and Experimental Dental Research
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Online Access:https://doi.org/10.1002/cre2.70077
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author Mehran Falahchai
Fatemeh Razavi Ardekani
Naghme Musapoor
Yasamin Babaee Hemmati
Hamid Neshandar Asli
author_facet Mehran Falahchai
Fatemeh Razavi Ardekani
Naghme Musapoor
Yasamin Babaee Hemmati
Hamid Neshandar Asli
author_sort Mehran Falahchai
collection DOAJ
description ABSTRACT Purpose To assess the effects of the presence of adjacent tooth and material type on the marginal and internal adaptation of endocrowns fabricated by the digital impression technique. Material and Methods An endodontically treated molar tooth was used for the fabrication of endocrowns in this in vitro study. Five groups of specimens (n = 17) were evaluated based on the material type and presence of adjacent tooth: three groups of monolithic zirconia (Zir), lithium disilicate (LDS), and zirconia‐reinforced lithium silicate (ZLS) in the presence of adjacent teeth, and two groups of zirconia endocrowns, one in the absence of an adjacent anterior tooth (second premolar; Zir‐no ant.) and one in the absence of a posterior adjacent tooth (second molar; Zir‐no post.). Marginal and internal adaptation of endocrowns was evaluated by the silicone replica technique. Data were analyzed by ANOVA with Tukey test for pairwise comparisons and generalized estimating equation with Bonferroni correction for pairwise comparisons (α = 0.05). Results The largest marginal gap was found in the ZLS, followed by the LDS and Zir groups (p < 0.05). The Zir group showed significantly higher internal adaptation than the ZLS group (p < 0.05); LDS had no significant difference with the ZLS and Zir groups (p > 0.05). The Zir group showed larger marginal and internal gaps than the Zir‐no ant. and Zir‐no post. groups (p < 0.05); the latter two groups had no significant difference (p > 0.05). All groups showed the largest gap at the pulpal and the smallest gap at the marginal and cervical areas (p < 0.05). Conclusion Zirconia endocrowns showed the highest marginal and internal adaptation. Digital impression technique in absence of anterior or posterior adjacent tooth would result in higher marginal and internal adaptation of endocrowns.
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spelling doaj-art-d93d1a1093ff4ed2bc4487cf782274872025-08-20T02:08:15ZengWileyClinical and Experimental Dental Research2057-43472025-02-01111n/an/a10.1002/cre2.70077Effects of the Presence of Adjacent Tooth and Material Type on the Marginal and Internal Adaptation of Endocrowns Fabricated by the Digital Impression TechniqueMehran Falahchai0Fatemeh Razavi Ardekani1Naghme Musapoor2Yasamin Babaee Hemmati3Hamid Neshandar Asli4Dental Sciences Research Center, Department of Prosthodontics, School of Dentistry Guilan University of Medical Sciences Rasht IranDepartment of Prosthodontics, School of Dentistry Yasuj University of Medical Sciences Yasuj IranDental Sciences Research Center, Department of Prosthodontics, School of Dentistry Qazvin University of Medical Sciences Qazvin IranDental Sciences Research Center, Department of Orthodontics, School of Dentistry Guilan University of Medical Sciences Rasht IranDental Sciences Research Center, Department of Prosthodontics, School of Dentistry Guilan University of Medical Sciences Rasht IranABSTRACT Purpose To assess the effects of the presence of adjacent tooth and material type on the marginal and internal adaptation of endocrowns fabricated by the digital impression technique. Material and Methods An endodontically treated molar tooth was used for the fabrication of endocrowns in this in vitro study. Five groups of specimens (n = 17) were evaluated based on the material type and presence of adjacent tooth: three groups of monolithic zirconia (Zir), lithium disilicate (LDS), and zirconia‐reinforced lithium silicate (ZLS) in the presence of adjacent teeth, and two groups of zirconia endocrowns, one in the absence of an adjacent anterior tooth (second premolar; Zir‐no ant.) and one in the absence of a posterior adjacent tooth (second molar; Zir‐no post.). Marginal and internal adaptation of endocrowns was evaluated by the silicone replica technique. Data were analyzed by ANOVA with Tukey test for pairwise comparisons and generalized estimating equation with Bonferroni correction for pairwise comparisons (α = 0.05). Results The largest marginal gap was found in the ZLS, followed by the LDS and Zir groups (p < 0.05). The Zir group showed significantly higher internal adaptation than the ZLS group (p < 0.05); LDS had no significant difference with the ZLS and Zir groups (p > 0.05). The Zir group showed larger marginal and internal gaps than the Zir‐no ant. and Zir‐no post. groups (p < 0.05); the latter two groups had no significant difference (p > 0.05). All groups showed the largest gap at the pulpal and the smallest gap at the marginal and cervical areas (p < 0.05). Conclusion Zirconia endocrowns showed the highest marginal and internal adaptation. Digital impression technique in absence of anterior or posterior adjacent tooth would result in higher marginal and internal adaptation of endocrowns.https://doi.org/10.1002/cre2.70077CAD‐CAMdental internal fitdental marginal adaptationdental material
spellingShingle Mehran Falahchai
Fatemeh Razavi Ardekani
Naghme Musapoor
Yasamin Babaee Hemmati
Hamid Neshandar Asli
Effects of the Presence of Adjacent Tooth and Material Type on the Marginal and Internal Adaptation of Endocrowns Fabricated by the Digital Impression Technique
Clinical and Experimental Dental Research
CAD‐CAM
dental internal fit
dental marginal adaptation
dental material
title Effects of the Presence of Adjacent Tooth and Material Type on the Marginal and Internal Adaptation of Endocrowns Fabricated by the Digital Impression Technique
title_full Effects of the Presence of Adjacent Tooth and Material Type on the Marginal and Internal Adaptation of Endocrowns Fabricated by the Digital Impression Technique
title_fullStr Effects of the Presence of Adjacent Tooth and Material Type on the Marginal and Internal Adaptation of Endocrowns Fabricated by the Digital Impression Technique
title_full_unstemmed Effects of the Presence of Adjacent Tooth and Material Type on the Marginal and Internal Adaptation of Endocrowns Fabricated by the Digital Impression Technique
title_short Effects of the Presence of Adjacent Tooth and Material Type on the Marginal and Internal Adaptation of Endocrowns Fabricated by the Digital Impression Technique
title_sort effects of the presence of adjacent tooth and material type on the marginal and internal adaptation of endocrowns fabricated by the digital impression technique
topic CAD‐CAM
dental internal fit
dental marginal adaptation
dental material
url https://doi.org/10.1002/cre2.70077
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