Analysis of implant precision in guided surgery: comparison of two methods.

Background: Implantology represents the therapy of choice for the rehabilitation of a partially or totally edentulous jaw in a healthy patient. Nowadays, it is possible to exploit of modern preoperative planning software, increasingly precise radiographic examinations (CBCT) and CAD/CAM technologies that allow designing devices directly on the computer to be sent to a milling center which produces the desired product, such as stereolithographic templates.

Methods: The prospective clinical study in question aims to evaluate the accuracy between two different surgical guides using peek and metal guide bushings.

Comparison between CBCT superimposition protocol and S.T.A.P. method to evaluate the accuracy in implant insertion in guided surgery.

Background: The aim of this study was to evaluate the accuracy of implant placement using static guided surgery. Two methods of measuring accuracy were compared, the superimposition of CBCT and the non-radiological Superimposition Touch Absolute Precision (S.T.

Immediate loading of implants in the aesthetic zone: comparison between two placement timings.

Aim Of The Study: Implant rehabilitation delivered in accordance with the traditional protocol has proven to be highly predictable and acceptable (1). Nevertheless, the application of immediate loading on post-extraction implants, especially for aesthetic zones, has now considerably increased (2). The aim of this work is to illustrate the immediate loading of implants placed in the aesthetic zone through tapered design fixtures with microgeometry of a high degree of porosity inserted at the same time or 4-8 weeks from dental avulsion (TSA® Advance, Phibo®).

Central osteoma of the maxilla: implant rehabilitation with immediate loading in fresh extraction socket.

Aim Of The Study: Solitary central osteomas of the jaw seem to be especially rare lesions; since 1955, only 12 cases have been reported and 4 of these were located in the maxilla. Osteomas are benign osteogenic lesions considered as real tumours but without infiltrative or metastatic potential. Their growth potential is usually limited, but certain rare and large cases of peripheral osteoma are described in literature.

Osteointegration in oncologic patients: a case report.

Objective: the present case report aims at illustrating how implant-prosthetic rehabilitation in patients with oral cancer resection aids to improve their quality of life.

Material And Methods: a patient with verrucous squamous cell carcinoma of the mandible was treated with surgery and rehabilitation with three interforaminal dental implants and Toronto bridge. Three years after treatment, because of cancer recurrence, a segment of jaw and one of the three mandibular implants were removed.

Multiple systemic diseases complicated by bisphosphonate osteonecrosis: a case report.

Aims: this work aims at demonstrating that multiple systemic conditions, in association with the development of bisphosphonate associated osteonecrosis of the jaw (ONJ), increase the risk of complications and may lead to hospitalization. For this reason the dental approach to patients with multisystem disease should be carefully managed by a team of specialists.

Case Report: a case of mandibular necrosis associated with intake of oral bisphosphonates in a complex systemic context is described.

Implant-supported denture rehabilitation on a hemimandibulectomized patient: a case report.

Aim Of The Study: the treatment of oral cancer requires different surgical approaches such as marginal or segmental mandibular resection in order to allow a safe removal of the neoplastic lesion. The aim of this work is to evaluate the efficacy of an implant-supported denture rehabilitation for restoring oral function and facial appearance on a hemimandibulectomized patient.

Materials And Methods: the patient was a 64 years old man, hard smoker and moderate drinker.

Implant-supported rehabilitation of a patient with mandibular ameloblastoma.

Objectives: this report describes the masticatory implant- supported rehabilitation of a patient undergoing resection for mandibular ameloblastoma.

Case Report: in the reported case the patient underwent resection and reconstruction with a fibula flap for masticatory rehabilitation of 7 implants at the level of the mandible.

Discussion: ameloblastoma is a benign locally invasive tumor of maxillary bones that often causes facial disfigurement.

Case control study to assess the possibility of decrease the risk of osteoradionecrosis in relation to the dose of radiation absorbed by the jaw.

Aims: the assessment of the limit dose for the organs at risk in external radiotherapy is a fundamental step to guarantee an optimal risk-benefit ratio. The aim of this study was to assess, through contouring the single dental cavities, the absorbed radiation dose on irradiated alveolar bones during the treatment of cervico-facial tumours, so as to test the correlation between the absorbed dose of radiation at alveolar level and the level of individual surgical risk for osteonecrosis.

Materials And Methods: we selected 45 out of 89 patients on the basis of different exclusion criteria.

Surgical protocol in patients at risk for bisphosphonate osteonecrosis of the jaws: clinical use of serum telopetide CTX in preventive monitoring of surgical risk.

Aim: This study investigates the association between cross linked C-terminal telopetide test (CTX) and individual surgical risk of osteonecrosis in patients taking oral bisphosphonates.

Materials And Methods: 32 patients receiving bisphosphonate were treated surgically. Patients were divided into three groups according to type of drug administrated and were subjected to a treatment of oral surgery, such as simple tooth extractions and extraction of all residual teeth of the oral cavity, upon evaluation of CTX values and antibiotic prophylaxis.