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Clin Implant Dent Relat Res ; 19(6): 1015-1022, 2017 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-28853215


BACKGROUND: Despite the existence of several studies validating the use of narrow diameter implants, most of them are based on pure Ti alloys. There is few clinical evidence of the success of TiZr narrow diameter implants (TiZr NDIs) regarding survival rate (SR) and marginal bone loss (MLB). PURPOSE: The aim of this review was to systematically assess SR, as well as MBL of TiZr NDIs compared to commercially pure titanium narrow diameter implants (cpTi NDIs). MATERIAL AND METHODS: The search was conducted in Medline/PubMed, Cochrane, Scopus, and Embase databases (year 2000 to November 2016). Cohort studies and randomized trials were included. RESULTS: Six clinical studies from the 3453 articles initially identified met the inclusion criteria. There were no statistically significant differences in SR when TiZr NDIs and cpTi NDIs were compared in the 1-year follow up (P = .5), or when comparing TiZr NDIs placed in posterior and anterior regions. There was no difference between groups regarding 1-year SR: -0.01 (95% CI, -0.05-0.03) and MLB: -0.01 mm (95% CI: -0.14-0.12). CONCLUSION: It can be concluded that TiZr NDIs present similar success rates and peri-implant bone resorption to cpTi NDIs.

Ligas Dentárias , Implantes Dentários , Planejamento de Prótese Dentária , Falha de Prótese , Titânio , Zircônio , Implantação Dentária Endóssea , Humanos , Análise de Causa Fundamental , Taxa de Sobrevida
J Prosthodont ; 26(3): 206-210, 2017 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-26496624


PURPOSE: The goal of complete denture rehabilitation is to restore facial esthetics and masticatory function to edentulous patients. Several types of artificial teeth with different occlusal anatomy are available. Theoretically, teeth with a higher cusp height provide improved masticatory efficiency. The aim of this study was to compare the masticatory efficiency of complete denture wearers using artificial teeth with two cusp heights. MATERIALS AND METHODS: Sixteen complete denture wearers were given complete dentures with Heraeus Premium teeth. Fifteen days after denture installation, a first masticatory efficiency test was performed with Optocal. A new pair of complete dentures with Dentsply Biotone teeth was then given to each participant to replace the first set. This second set was fabricated by duplicating the same models used to fabricate the first set of dentures. Fifteen days after installation of the dentures with Biotone teeth, a second masticatory efficiency test was performed with Optocal. On both tests, the comminuted material was treated and sieved through a stack of sieves under vibration. The content of each sieve was weighed, and the obtained data were tabulated. Statistical analysis was performed using the Kolmogorov-Smirnov and Wilcoxon tests. RESULTS: Mean and standard deviation of participants' masticatory efficiency, as measured by X50 particle size (mm), were 8.39 and 5.59 for dentures with Premium teeth, and 8.56 and 5.84 for dentures with Biotone teeth. CONCLUSION: According to the results, there were no differences (p < 0.05) in the masticatory efficiency of the complete denture sets using teeth with the two cusp heights.

Prótese Total , Mastigação/fisiologia , Boca Edêntula/reabilitação , Dente Artificial , Idoso , Planejamento de Dentadura , Estética Dentária , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Boca Edêntula/fisiopatologia
Case Rep Dent ; 2016: 7418686, 2016.
Artigo em Inglês | MEDLINE | ID: mdl-27069698


Different types of artificial teeth and occlusal designs can be used in complete dentures. Bilateral balanced occlusion, lingualized occlusion, canine guidance, and monoplane are the main occlusal designs; however there is no agreement on which tooth arrangement is ideal for achieving success in complete dentures. This report presents an alternative for persistent involuntary protruding complete denture wearers through the use of artificial teeth with higher cusps. Due to an old and worn pair of complete dentures, the patient had the habit of protruding. New dentures were made with Biotone artificial teeth and in the trial session, the patient would still protrude. A new set was made with Premium artificial teeth, which present higher cusps. With these dentures, the involuntary protrusion did not occur. From the delivery to the follow-up sessions, the patient stopped protruding.