Publications by authors named "Alana Barbosa Alves Pinto"
Article Synopsis
- The study explores how the remaining coronal tooth structure affects the strength of nonpost full crowns on treated maxillary central incisors.
- Forty bovine incisors were tested under different conditions regarding the ferrule structure, with varying survival rates observed during stress tests.
- Results highlighted that a complete 2-mm ferrule maximizes crown durability, underscoring the importance of preserving tooth structure in restorative dentistry.
Objectives: The aim of this study was to compare the effect of three different access cavities on the tissue removal, deflection, fracture resistance, and stress distribution of extracted maxillary central incisors.
Materials And Methods: Forty human maxillary central incisors were randomly assigned in four experimental group (n = 10) including conservative access cavity "CAC," traditional access cavity "TAC," invasive access cavity "IAC," and without access cavity (control group). Cone-beam computed tomography "CBCT" scans were used to evaluate the tissue removal during the different access cavities.
Effect of three different veneering techniques on the stress distribution and in vitro fatigue behavior of core-veneer all-ceramic fixed partial dentures.
J Dent Res Dent Clin Dent Prospects
August 2021
The present study aimed to evaluate the influence of the veneering technique on the tensile stress distribution and survival of full-ceramic fixed dental prostheses (FDPs). A three-dimensional model of an FDP was modeled on a second premolar and a second molar with a pontic between them for finite element analysis (FEA). The groups were divided according to the veneering technique: conventional stratification, rapid layer, and CAD-on techniques.
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- The study investigates the polymerization shrinkage stress of three types of dental preparation designs for indirect ceramic overlays using finite element analysis.
- Results indicated that the isthmus preparation (IST) had the highest stress levels followed by without isthmus (wIST) and non-retentive (nRET) preparations, with significant differences noted in both the cement layer and the tooth structure.
- The non-retentive preparation (nRET) demonstrated the lowest shrinkage stress and a more uniform stress distribution, suggesting that this design may be more advantageous for reducing stress on dental materials.
Root perforation is a common endodontic accident. Its management depends mainly on root canal disinfection and sealing the perforation area by preventing any communication with the periodontium to prevent recontamination. A patient was referred to treat root perforation due to a previous treatment of tooth #22.
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