Revista dental de Chile最新文献

Considering the great apogee reached in the last few years by the osseointegrated implants used in modern odontology it makes necessary to go deeper into the analysis of some anatomo-morphologic mandible aspects on partial edentates. Actually, these make the major percentage of patients who ask or are in effect candidates to rehabilitation by means of this technic. So it is described on individual analysis for each clinical case classified according to Kennedy's classification, giving emphasis to determination and real evaluation of height, thickness and form of partial edentates' mandibles. Furthermore, there are given some prosthetic models to be considered in the osseointegrated implant indications on partial edentates.

The present report reviews the clinical experience of the authors, with a new material in haloplastic grafts; the HTR; with the following purposes: Remain and or increase alveolar ridges. Close-up of congenital clefts.

Extensive anterior teeth abrasions can be rehabilitated by the use of overdentures. Obtaining very good physiological and esthetical results.

Certain patients who show different kinds of clinical situations such as partial resorption of alveolar ridge, periodontal defect and loss of teeth, the ceramic hydroxylapatite is used in three manners: alone, in combination with surgical vitalium in some cases and in others with alúmina, in order to solve these problems. These procedures will give a better rehabilitated solution to the patients. Two types of surgical procedures are used to implant the hydroxylapatite, the subperiosteal tunneling in some cases and the flap procedure in others. The patients are examined by means of clinical and radiographic analyses for about eight years.

A clinical analysis of the gingival tissues surrounding 17 subperiosteal dental implant posts was made. The clinical phase consisted in: Periodontal probe test locking for bleeding; peri-implant sulcus deep test; and the amount of bacterial plaque test on the subperiosteal post. The results showed clinically healthy tissues surrounding the subperiosteal posts. The presence of bacterial plaque is an important factor in the modification of the clinical inflammation parameters.

Long term research results initiated by Dr. P. I. Branemark in 1965 and before, had widely demonstrated that with an adequate biomaterial, a phenomenon of biological acceptance from maxillary bone occurs, configurating a real bone healing, obtaining an intimate bonding between this alive tissue and the implant, which will last under function. Nevertheless, for this bio-physiological step happens and remain, there are many necessary factors named biological and biomechanical principles, and they command and are the responsibles of the osseointegration success.

Has been pointed out that this is the aesthetic era for current dentistry. The oral and maxillo facial surgeon plays an important role in this regard emfatizing that the facial aesthetic is part of our field and responsibility in conjunction with the functional goal of most of our treatments.

Titanium osseointegrated implants have been placed in maxilaries of partially edentulous patients. After a follow-up of 5 to 6 months, a clinical and radiographical evaluation was made in order to determine the osseointegration obtained. In two of these cases, the gingival tissue in contact with the implants was studied under a light and transmission electron microscope. The results indicated a high percentage of implants were osseointegrated (99.72%), and the microscopical analysis showed a tissular reaction denoting biocompatibility with the implants.

Twenty molars, 10 from the maxilla and 10 from the mandible with furcation areas type II (Staffileno) were instrumented in their inter-radicular area with P10 instrument of Cavitron. It was established that the furcations of easier access instrumentation were the lingual o lower teeth and the buccal of the upper, and the most difficult accessibility were the distal of upper molars. The instrumentation can leave grooves or deformations, depending on the instrument to the area. It was concluded that ultrasonic instrument are useful removing supragingival calculus and bacterial plaque, and it must be limited to perform such procedures.