Effect of Different Preparation Designs on the Fracture Load of Two Machinable Laminate Veneers

Tamimi, Sara; Essam, Eman; Guindy, Jylan El

doi:10.21608/adjg.2017.5197

Cited by 3 publications

(2 citation statements)

References 14 publications

(8 reference statements)

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“…It improves the fit, reduces cement (23) Preparation and restoration design might influence the marginal adaption of the ceramic material used to restore missing tooth structure, which is of highest relevance for the scientific evidence of clinical circumstances. (24) It has been demonstrated that tooth morphology and preparation have an effect on the longevity and dependability of prosthetic restorations. The tooth preparation criteria for crown sample approval were intended to simulate clinical settings.…”

Section: Discussionmentioning

confidence: 99%

Assessment of Internnal Adaptation of Cad Cam All Ceramic Crowns With Two Different Margin Designs

Sayed

Elbolok

Amgad

2023

Egyptian Dental Journal

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Aim: This study examined the effect of cervical finish line preparation on the internal adaptation of all-ceramic crowns produced, using CAD CAM technology with two fabricated materials: IPs Emax and Zirconia-reinforced lithium silicate (Celtra Duo).Methods: Two intact human premolars were collected with similar preparation dimensions, except for a (1.00 mm) on the margin. For sample standardization, 40 epoxy replicas of prepared premolar teeth were produced. Deep chamfer (DC group, n = 20) and knife-edge (KE group, n = 20) finish lines were used to split samples. Each group was divided into two subgroups according to fabricated material. Subgroup 1: lithium di silicate ceramic (n=10) and Subgroup 2: lithium silicate reinforced with zirconia (n=10). All crowns were CAD/CAM-made. All samples were aged by thermo-cycling after being bonded to a tooth, and the internal adaptation was measured using a stereomicroscope. Results:The findings demonstrated an increase in the internal adaptation between vertical preparation (127.7±8.6) and deep chamfer (109.9±6.4), regardless of the material. In addition, regardless of methodology, the difference between E-max (119.6±16) and Celtra (118±5.7).Conclusions: Vertical preparation may be an alternative to horizontal preparation and more conservative to sound tooth structure throughout the fabrication of fixed abutments to give a less intrusive option.

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Section: Discussionmentioning

confidence: 99%

Assessment of Internnal Adaptation of Cad Cam All Ceramic Crowns With Two Different Margin Designs

Sayed

Elbolok

Amgad

2023

Egyptian Dental Journal

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“…The fracture strength of ceramic veneers can be affected by different tooth preparation designs, as well as one design of tooth preparation being superior to another. (3) .…”

Section: Introductionmentioning

confidence: 99%

Influence of Different Vonlay Preparation Designs on Fracture Resistance

Sayed

waz²,

mohamed³

2022

Egyptian Dental Journal

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Objectives: This research aimed to evaluate the influence of different vonlay preparation designs on fracture resistance in comparison with full coverage ceramic crown (as a control group) Methods: Thirty fresh extracted upper four teeth were collected from the orthodontic clinic in Minia and Nahda university. Teeth were divided according to the design of vonlay preparation into three groups. In Group (A); the control group the teeth were prepared to receive full coverage lithium-disilicate crowns (n=10), Group (B); teeth were prepared to receive bonded partial restoration (vonlay) involving functional cusp (n=10), and Group (C); teeth were prepared to receive bonded partial restoration (vonlay) without involving functional cusp (n=10). Then, by using a universal testing machine, samples were loaded along the long axis of the teeth until they fractured, and the maximum breaking load was recorded, as well as fracture patterns were noted. All samples were exposed to thermo-mechanical aging before testing.Results: preparation design of vonlay influences the fracture resistance of restoration.

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Fracture Resistance of Two Preparation Designs on Anterior Laminate Veneers: A Systematic Review and Meta-analysis

Joseph¹,

Singh²,

Ravi³

et al. 2022

World Journal of Dentistry

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Effect of Different Preparation Designs on the Fracture Load of Two Machinable Laminate Veneers

Cited by 3 publications

References 14 publications

Assessment of Internnal Adaptation of Cad Cam All Ceramic Crowns With Two Different Margin Designs

Assessment of Internnal Adaptation of Cad Cam All Ceramic Crowns With Two Different Margin Designs

Influence of Different Vonlay Preparation Designs on Fracture Resistance

Fracture Resistance of Two Preparation Designs on Anterior Laminate Veneers: A Systematic Review and Meta-analysis

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