Within the limits of this study, the implants placed either in sites augmented with ncHA or autogenous bone seem to represent a safe and successful procedure, at least, after 12-month follow-up.

Alveolar osteotomies associated with sandwich interpositional bone graft, independently of bone graft, resulted in bone formation over a period of 12 months.

No abstract

The purpose of this study was to evaluate cardiovascular changes during dental implant surgery using 2% lidocaine with 1:80 000 epinephrine. Eleven normotensive subjects, ranging from 18 to 56 years, were selected to undergo dental implant surgery in the jaw. They were monitored in the pre-, intra-, and postsurgical periods by continuous noninvasive automatic arterial pressure and cardiac frequency measurements taken every 2 minutes. Parameter scores were obtained for the following phases: P1, 15 minutes during preparation of the patient (control period); P2, before anesthesia; P3, immediately after anesthesia; P4, 2 minutes into anesthesia; P5, during incision and detachment; P6, during perforation; P7, during implant placement; P8, during suturing; P9, on completion; and P10, 10 minutes after termination. Individualized statistical analysis for each group during the pre-, intra-, and postoperative periods were performed by analysis of variance. The greatest variations in systolic pressure were increases of 2.29% during phase P2 and 2.59% in phase P5. Diastolic pressure decreased during phase P6 (-2.58%) and increased in P10 (3.27%). The greatest changes in heart rate occurred in phase P10 (-3.24%). There were no statistically significant changes among the evaluated phases (P > .05). In conclusion, there were no changes in the analyzed cardiocirculatory parameters during dental implant surgery (systolic, diastolic, and mean arterial blood pressures and heart rate) in normotensive subjects anesthetized with 2% lidocaine with epinephrine 1:80000.

A Odontologia vem tendo dificuldades nas reabilitações das maxilas atróficas. Para esse desafio, um dos tratamentos são as fixações zigomáticas, que foram propostas inicialmente por Brånemark 1 , (1998). Suas principais indicações são presença de suporte ósseo anterior com necessidade de enxerto posterior; falta de suporte ósseo anterior para a colocação de quatro implantes zigomáticos; pacientes que não podem ou não querem enxertos; diminuição dos custos e maxilectomizados. A literatura mostra que esses implantes segundo cada fabricante variam na forma, no comprimento, no tratamento de superfície e no componente anti-rotacional. Basicamente os autores apresentam três técnicas cirúrgicas: a convencional, a modificada e a exteriorizada. Essas técnicas segundo meta-análise dos autores estudados têm um índice de sucesso médio (97,35%) em um acompanhamento médio de 33 meses. Com esses dados chegam-se à conclusão de que as fixações zigomáticas são uma técnica de sucesso, mas necessitam de mais estudos em longo prazo.