Biomechanical planning for minimally invasive indirect restorations

Bomfim, Deborah I; Rahim, Noushad M; Austin, Rupert

doi:10.1038/s41415-020-2170-x

Cited by 6 publications

(5 citation statements)

References 30 publications

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“…The primary mode of failure of CAD/CAM restorations is fracture; reasons for fracture of ceramic restorations may include low flexural strength of the material, subsurface flaws of CAD‐CAM ceramics produced during machining, insufficient polishing of the occlusal surfaces after adjustment and parafunctional habits, with equivalent rates being shown for hybrid ceramics in early data (Lu et al, 2018 ). However, a key issue with CAD‐CAM hybrid ceramics is their failure in full crown scenarios, due to the excessive hoop stresses that occur, and therefore, many manufacturers limit their indications for partial coverage restorations and contra‐indicate their use for full coverage crowns (Bomfim et al, 2020 ).…”

Section: Cad‐cam Restorationsmentioning

confidence: 99%

Present status and future directions: The restoration of root filled teeth

et al. 2022

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This narrative review will focus on a number of contemporary considerations relating to the restoration of root filled teeth and future directions for research. Clinicians are now more than ever, aware of the interdependence of the endodontic and restorative aspects of managing root filled teeth, and how these aspects of treatment are fundamental to obtaining the best long-term survival. To obtain the optimal outcomes for patients, clinicians carrying out endodontic treatment should have a vested interest in the restorative phase of the treatment process, as well as an appreciation for the structural and biomechanical effects of endodontic-restorative procedures on restoration and tooth longevity. Furthermore, the currently available research, largely lacks appreciation of occlusal factors in the longevity of root filled teeth, despite surrogate outcomes demonstrating the considerable influence this variable has.Controversies regarding the clinical relevance of minimally invasive endodontic and restorative concepts are largely unanswered with respect to clinical data, and it is therefore, all too easy to dismiss these ideas due to the lack of scientific evidence.However, conceptually, minimally invasive endodontic-restorative philosophies appear to be valid, and therefore, in the pursuit of improved clinical outcomes, it is important that the efficacies of these treatment protocols are determined. Alongside an increased awareness of the preservation of tooth structure, developments in adhesive bonding, ceramic materials and the inevitable integration of digital dentistry, there is also a need to evaluate the efficacy of new treatment philosophies and techniques with well-designed prospective clinical studies.

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Section: Cad‐cam Restorationsmentioning

confidence: 99%

Present status and future directions: The restoration of root filled teeth

et al. 2022

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“…Direct composite veneers cannot take the place of the well-known ceramic veneer method. Although they might be a time-consuming technique, they provide an option to directly veneering or bolstering anterior teeth (Bomfim et al, 2020). Direct composite resin veneers require just one visit (Bomfim et al, 2020), and composite is modified to cover discolouration and shade matching should be carried out carefully (Cardoso et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Knowledge protocol of direct and indirect Veneers among dental practitioners - A case study

et al. 2023

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Background and objectives: Dental veneers are constructed from different materials such as porcelain, pressed ceramic, processed composite, or directly applied composite. The purpose of this study was to ascertain the preferred dental materials for veneers and the knowledge about its procedures by dentists in the Kurdistan region/Erbil city Methods: To assess general dentists' knowledge and practical use of direct and indirect veneers, a cross-sectional survey was undertaken in March 2022 among all general dentists and different dental specialties in Erbil city. The questionnaire was composed of 16 questions and was organized into knowledge, attitude, and practice sections. Google forms were used to collect responses, which were then statistically examined. Results: This study revealed respondents were having difficulty in veneer cementations followed by tooth preparations, P value=0.025, hence statistically significant. The most popular veneer among practitioners were EMAX press and EMAX CAD. In addition, veneer dislodgement was the most common problem faced by dentists followed by tooth sensitivity, p value 0.012 so statistically significant. Conclusions: Given the study's limitations, it may be stated that dentists should get good expertise in case selection for veneers, shade matching, optimal preparation processes and designs, and current advancements in veneer materials and adhesive techniques.

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“…Composite resin restorations are generally the first choice in anterior [ 3 , 4 ] and posterior restorations [ 5 ] due to their aesthetic appearance, conservative cavity preparation designs, and relatively lower cost [ 5 ]. It is estimated that almost a billion composite resin restorations are placed every year across the globe [ 6 , 7 ]. Despite their popularity, composite resin restorations have a failure rate of approximately 5% based on wear and fractures [ 8 , 9 , 10 ].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Fracture Strength of Fiber-Reinforced Direct Composite Resin Restorations: An In Vitro Study

Albar

Khayat

2022

Polymers

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This in vitro study aimed to compare the fracture strength of direct non-reinforced class II composite resin restorations and polyethylene fiber-reinforced restorations, and also to investigate the influence of the locations of polyethylene fibers within the cavity on the fracture strength. Sixty freshly extracted human teeth were disinfected and prepared (class II cavity design). The teeth were assigned randomly into four groups (n = 13). Group I (control) was restored with nano-hybrid composite resin. The other three experimental groups were restored with the same composite resin material reinforced by polyethylene fibers (Ribbond) at different locations. Fibers were placed either on the axial wall (Group II), on the gingival floor (Group III), or on the axial wall and pulpal/gingival floor (Group IV) of the proximal cavity. All the teeth were subjected to thermocycling to simulate the oral environment. The fracture strength was measured using a universal testing machine. Group IV had the highest mean fracture strength at maximum load (148.74 MPa), followed by Group II (140.73 MPa), Group III (136.34 MPa), and Group I (130.08 MPa), with a statistically significant difference from the control group (p = 0.008) but not between groups II and III.

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Biomechanical planning for minimally invasive indirect restorations

Cited by 6 publications

References 30 publications

Present status and future directions: The restoration of root filled teeth

Present status and future directions: The restoration of root filled teeth

Knowledge protocol of direct and indirect Veneers among dental practitioners - A case study

Evaluation of Fracture Strength of Fiber-Reinforced Direct Composite Resin Restorations: An In Vitro Study

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