RESUMEN
OBJECTIVE: To compare the use of a piezosurgery expander and conventional chisel/osteotome on primary implant stability. MATERIALS AND METHODS: Twenty fresh ribs were divided into two main groups; group P and group C. In group P, bone expansion was performed using piezosurgery. In group C, bone expansion was performed using conventional chisel osteotomy. In both groups, the implants were inserted into the ribs after bone expansion. After implant placement, primary stability values were evaluated from the bucco-lingual (B-L) and mesio-distal (M-D) sides of the implant. RESULTS: The primary stability values on the B-L side of both implants in group P were significantly higher than in group C (P < 0.05). CONCLUSION: The use of piezo-expanders in the alveolar split technique has better effects on primary implant stability compared with the conventional technique.
Asunto(s)
Implantes Dentales , Osteotomía/instrumentación , Piezocirugía/métodos , Implantación Dental Endoósea , Instrumentos Dentales , Humanos , Osteotomía/métodos , Piezocirugía/instrumentación , Factores de TiempoRESUMEN
OBJECTIVE: Irrigation with saline is one of the essential methods for reducing the heat generated during dental implant osteotomy. High irrigation volume impairs visibility of the surgical field, thus complicates the surgery. In this study, we aimed to determine the optimal irrigation volume for heat reduction during dental implant drilling. MATERIALS AND METHODS: Thirty-two implant osteotomies were prepared on four fresh cow ribs. Heat generated during the final implant drilling was measured both with infrared thermography and thermocouple method. Initial and maximum temperatures were measured at four different irrigation volumes; 32, 44, 56, and 68 ml/min. RESULTS: Both measurement methods showed that the amount of temperature rise is associated with the irrigation volume during implant drilling. There is no further decrease in temperature rise above irrigation volume of 56 ml/min. CONCLUSION: Saline irrigation with 56 ml/min provides sufficient heat reduction during dental implant drilling and higher irrigation volumes are not necessary.
Asunto(s)
Implantes Dentales , Calor , Osteotomía/métodos , Irrigación Terapéutica/métodos , Termografía/métodos , Animales , Bovinos , Implantación Dental , Femenino , Humanos , Costillas/fisiología , Costillas/cirugía , Temperatura , TermómetrosRESUMEN
Acute dislocation of the temporomandibular joint (TMJ) is a relatively common occurrence; chronic long-term dislocation is rare. Variance in the duration of dislocation and anatomical considerations make the treatment for long-standing dislocation complex and controversial. This paper attempts to review the literature associated with chronic TMJ dislocation treatment options and presents the authors' experience with a particularly long term dislocation.