Complications of guided surgery and immediate loading in oral implantology: A report of 12 cases

Objectives: The growing interest in minimally invasive surgery, together with the possibility of fitting prostheseswith immediate function, have led to the development of software capable of planning and manufacturing a surgicalguide and prosthesis that can be placed upon conclusion of the implant surgery step.The present study evaluates the surgical and prosthetic complications of implant treatment with the guided surgerytechnique, together with patient comfort during and after treatment.Patients and methods: A retrospective observational study was made of 19 patients with partially or totally edentulousupper and/or lower maxillae, involving the placement of a total of 122 implants. All cases were planned andoperated upon with the guided surgery technique.Results: A total of 122 implants were placed in 14 males and 5 females. The intraoperative surgical complicationscomprised a lack of primary stability, while the postoperative complications consisted of infections and a lack ofimplant osteointegration. Ten implants failed. The prosthetic complications in turn comprised loosening of theprovisional prosthesis screws, prosthesis tooth fracture, and a lack of passive fit of the immediate prosthesis. Thedegree of patient satisfaction was evaluated using a verbal scale.Conclusions: Implant restoration with the guided surgery technique and immediate functional loading is a predictableprocedure, provided patient selection and the surgical technique are adequate, affording lesser postoperativemorbidity and increased patient satisfaction thanks to the immediate restoration of esthetics and function (AU)

Complications of guided surgery and immediate loading in oral implantology: a report of 12 cases.

OBJECTIVES: The growing interest in minimally invasive surgery, together with the possibility of fitting prostheses with immediate function, have led to the development of software capable of planning and manufacturing a surgical guide and prosthesis that can be placed upon conclusion of the implant surgery step. The present study evaluates the surgical and prosthetic complications of implant treatment with the guided surgery technique, together with patient comfort during and after treatment. PATIENTS AND METHODS: A retrospective observational study was made of 19 patients with partially or totally edentulous upper and/or lower maxillae, involving the placement of a total of 122 implants. All cases were planned and operated upon with the guided surgery technique. RESULTS: A total of 122 implants were placed in 14 males and 5 females. The intraoperative surgical complications comprised a lack of primary stability, while the postoperative complications consisted of infections and a lack of implant osteointegration. Ten implants failed. The prosthetic complications in turn comprised loosening of the provisional prosthesis screws, prosthesis tooth fracture, and a lack of passive fit of the immediate prosthesis. The degree of patient satisfaction was evaluated using a verbal scale. CONCLUSIONS: Implant restoration with the guided surgery technique and immediate functional loading is a predictable procedure, provided patient selection and the surgical technique are adequate, affording lesser postoperative morbidity and increased patient satisfaction thanks to the immediate restoration of esthetics and function.

Accidental displacement of dental implants into the maxillary sinus: a report of nine cases.

PURPOSE: To report on the clinical, radiological, and anatomical features of patients suffering accidental displacement of dental implants into the maxillary sinus. MATERIALS AND METHODS: A retrospective observational study of nine cases of dental implant displacement into the maxillary sinus was made. Data concerning patients' features, diagnostic criteria, and treatment performed were collected. RESULTS: Mean patient age was 56.7 years, and men predominated (6 : 3). Implant displacement was diagnosed in all cases by clinical and radiological examination. In seven patients, the implant was surgically removed without complications. Only three patients reported sinus symptoms following displacement. CONCLUSIONS: The displacement of implants into the maxillary sinus is usually related with a poor surgical planning or inadequate surgical technique. Because of the anatomy and physiology of the posterior area of the maxilla, it is essential to ensure good primary stability in order to avoid this complication. If the implant migrates into the maxillary sinus, it should be removed in order to avoid sinus pathology.