Effect of ceramic materials and tooth preparation design on computer‐aided design and computer‐aided manufacturing endocrown adaptation and retentive strength: An in vitro study
Abstract Objectives To evaluate how various tooth preparation designs impact the adaptation—both at the margins and internally—and the retentive strength of computer‐aided design and computer‐aided manufacturing (CAD/CAM) produced endocrowns. Materials and Methods 60 extracted human mandibular first...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2024-02-01
|
| Series: | Clinical and Experimental Dental Research |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/cre2.843 |
| _version_ | 1797316407865638912 |
|---|---|
| author | Ahmed Farghal Karim Dewedar Mohammed H. AbdElaziz Samah Saker Mahy Hassona Radwan Algabri Ahmed Yaseen Alqutaibi |
| author_facet | Ahmed Farghal Karim Dewedar Mohammed H. AbdElaziz Samah Saker Mahy Hassona Radwan Algabri Ahmed Yaseen Alqutaibi |
| author_sort | Ahmed Farghal |
| collection | DOAJ |
| description | Abstract Objectives To evaluate how various tooth preparation designs impact the adaptation—both at the margins and internally—and the retentive strength of computer‐aided design and computer‐aided manufacturing (CAD/CAM) produced endocrowns. Materials and Methods 60 extracted human mandibular first molars were endodontically treated and assigned into three groups (n = 20) according to the tooth preparation design: Group N: butt joint design, Group F and F1 received 1‐ and 2‐mm circumferential ferrule preparation, respectively. Endocrowns were milled using either lithium disilicate glass‐ceramic (IPS emax ceramic) or monolithic zirconia. The internal and marginal adaptation of the endocrowns were evaluated using the replica technique. After cementation, the endocrowns of all test groups were dislodged axially at 0.5 mm/min using a universal testing machine. A 2‐way ANOVA and the independent samples t‐test (α = .05) were performed to statistically analyze the data. Results The effect of changing the design of the tooth preparation (butt joint, ferrule) on the marginal and internal gap was shown to be statistically significant (p < .05); the lower gap values were recorded at the axial followed by cervical, marginal, and pulpal floor walls in both ceramic groups regardless of the teeth preparation design. The ANOVA test revealed similar average removal forces and stresses for the two types of tested ceramic materials. Conclusion IPS emax ceramic adapted better than monolithic zirconia ceramic, regardless of the preparation design. Ferrule preparation design is more retentive than butt joint preparation, regardless of the type of ceramic material used. |
| first_indexed | 2024-03-08T03:17:57Z |
| format | Article |
| id | doaj.art-b9f6cb76cc374b1a8dadc1e22fe42691 |
| institution | Directory Open Access Journal |
| issn | 2057-4347 |
| language | English |
| last_indexed | 2024-03-08T03:17:57Z |
| publishDate | 2024-02-01 |
| publisher | Wiley |
| record_format | Article |
| series | Clinical and Experimental Dental Research |
| spelling | doaj.art-b9f6cb76cc374b1a8dadc1e22fe426912024-02-12T14:56:40ZengWileyClinical and Experimental Dental Research2057-43472024-02-01101n/an/a10.1002/cre2.843Effect of ceramic materials and tooth preparation design on computer‐aided design and computer‐aided manufacturing endocrown adaptation and retentive strength: An in vitro studyAhmed Farghal0Karim Dewedar1Mohammed H. AbdElaziz2Samah Saker3Mahy Hassona4Radwan Algabri5Ahmed Yaseen Alqutaibi6Substitutive Dental Science, College of Dentistry Taibah University Madinah Saudi ArabiaCrown and Bridge Department, Faculty of Dental Medicine Al‐Azhar University Cairo EgyptSubstitutive Dental Science, College of Dentistry Taibah University Madinah Saudi ArabiaFixed Prosthodontics, Faculty of Dentistry Mansoura University Mansoura EgyptFixed Prosthodontics, Faculty of Dentistry Mansoura University Mansoura EgyptProsthodontic Department, Faculty of Dentistry Ibb University Ibb YemenSubstitutive Dental Science, College of Dentistry Taibah University Madinah Saudi ArabiaAbstract Objectives To evaluate how various tooth preparation designs impact the adaptation—both at the margins and internally—and the retentive strength of computer‐aided design and computer‐aided manufacturing (CAD/CAM) produced endocrowns. Materials and Methods 60 extracted human mandibular first molars were endodontically treated and assigned into three groups (n = 20) according to the tooth preparation design: Group N: butt joint design, Group F and F1 received 1‐ and 2‐mm circumferential ferrule preparation, respectively. Endocrowns were milled using either lithium disilicate glass‐ceramic (IPS emax ceramic) or monolithic zirconia. The internal and marginal adaptation of the endocrowns were evaluated using the replica technique. After cementation, the endocrowns of all test groups were dislodged axially at 0.5 mm/min using a universal testing machine. A 2‐way ANOVA and the independent samples t‐test (α = .05) were performed to statistically analyze the data. Results The effect of changing the design of the tooth preparation (butt joint, ferrule) on the marginal and internal gap was shown to be statistically significant (p < .05); the lower gap values were recorded at the axial followed by cervical, marginal, and pulpal floor walls in both ceramic groups regardless of the teeth preparation design. The ANOVA test revealed similar average removal forces and stresses for the two types of tested ceramic materials. Conclusion IPS emax ceramic adapted better than monolithic zirconia ceramic, regardless of the preparation design. Ferrule preparation design is more retentive than butt joint preparation, regardless of the type of ceramic material used.https://doi.org/10.1002/cre2.843adaptationendocrownmonolithic zirconia ceramicpreparation design |
| spellingShingle | Ahmed Farghal Karim Dewedar Mohammed H. AbdElaziz Samah Saker Mahy Hassona Radwan Algabri Ahmed Yaseen Alqutaibi Effect of ceramic materials and tooth preparation design on computer‐aided design and computer‐aided manufacturing endocrown adaptation and retentive strength: An in vitro study Clinical and Experimental Dental Research adaptation endocrown monolithic zirconia ceramic preparation design |
| title | Effect of ceramic materials and tooth preparation design on computer‐aided design and computer‐aided manufacturing endocrown adaptation and retentive strength: An in vitro study |
| title_full | Effect of ceramic materials and tooth preparation design on computer‐aided design and computer‐aided manufacturing endocrown adaptation and retentive strength: An in vitro study |
| title_fullStr | Effect of ceramic materials and tooth preparation design on computer‐aided design and computer‐aided manufacturing endocrown adaptation and retentive strength: An in vitro study |
| title_full_unstemmed | Effect of ceramic materials and tooth preparation design on computer‐aided design and computer‐aided manufacturing endocrown adaptation and retentive strength: An in vitro study |
| title_short | Effect of ceramic materials and tooth preparation design on computer‐aided design and computer‐aided manufacturing endocrown adaptation and retentive strength: An in vitro study |
| title_sort | effect of ceramic materials and tooth preparation design on computer aided design and computer aided manufacturing endocrown adaptation and retentive strength an in vitro study |
| topic | adaptation endocrown monolithic zirconia ceramic preparation design |
| url | https://doi.org/10.1002/cre2.843 |
| work_keys_str_mv | AT ahmedfarghal effectofceramicmaterialsandtoothpreparationdesignoncomputeraideddesignandcomputeraidedmanufacturingendocrownadaptationandretentivestrengthaninvitrostudy AT karimdewedar effectofceramicmaterialsandtoothpreparationdesignoncomputeraideddesignandcomputeraidedmanufacturingendocrownadaptationandretentivestrengthaninvitrostudy AT mohammedhabdelaziz effectofceramicmaterialsandtoothpreparationdesignoncomputeraideddesignandcomputeraidedmanufacturingendocrownadaptationandretentivestrengthaninvitrostudy AT samahsaker effectofceramicmaterialsandtoothpreparationdesignoncomputeraideddesignandcomputeraidedmanufacturingendocrownadaptationandretentivestrengthaninvitrostudy AT mahyhassona effectofceramicmaterialsandtoothpreparationdesignoncomputeraideddesignandcomputeraidedmanufacturingendocrownadaptationandretentivestrengthaninvitrostudy AT radwanalgabri effectofceramicmaterialsandtoothpreparationdesignoncomputeraideddesignandcomputeraidedmanufacturingendocrownadaptationandretentivestrengthaninvitrostudy AT ahmedyaseenalqutaibi effectofceramicmaterialsandtoothpreparationdesignoncomputeraideddesignandcomputeraidedmanufacturingendocrownadaptationandretentivestrengthaninvitrostudy |