types of biomaterials. Two were of xenogenous origin, consisting of deproteinized bovine bone, while the other was alloplastic, based on biphasic calcium phosphate. Five New Zealand white rabbits weighing between 2900 and 3500 g were submitted to four standard 8 mm-diameter perforations at the parietal bone. Three perforations were filled with three grafts and biomaterials, of which two receive...

BACKGROUND A new technique, therapeutic alloplastic laser in situ keratomileusis to correct high myopia, is introduced. METHODS Therapeutic alloplastic laser in situ keratomileusis consists of neutral homoplastic epikeratoplasty combined with superficial keratectomy performed with an excimer laser and/or a microkeratome. Indications for the technique are: myopia over 20 diopters (D), eyes wit...

Background The goal of this study is to evaluate complication and effectiveness of alveolar ridge augmentations using a hydroxyapatite-based alloplastic bony substitute with rhBMP-2. Methods A total of 10 patients (4 males, 6 females; 58.5 ± 8.6 years) participated in this clinical research. Alveolar ridge augmentations were performed in edentulous (4 maxillary posterior, 5 mandibular posteri...

The unique and complex anatomy of the orbit requires significant contouring of the implants to restore the proper anatomy. Fractures of the orbital region have an incidence of 10-25% from the total facial fractures and the most common age group was the third decade of life. The majority of cases required reconstruction of the orbital floor to support the globe position and restore the shape of ...

BACKGROUND Use of the thoracodorsal artery perforator (TDAP) flap in combination with alloplastic devices has been proven to be a safe method of breast reconstruction. However, preoperative irradiation increases the complication rate and thus some consider preoperative radiotherapy a relative contraindication to alloplastic alone reconstruction. We evaluated the long-term outcomes of patients w...

Background: Resection defects of the skull have long been reconstructed using autogenously and alloplastic materials[1]. Complex reconstructions of the orbit have been reported to benefit from patient specific implants [2].Due to new algorithms planning procedures for these implants have recently improved significantly. Rapid production methods such as selective laser melting and rapid prototyp...

Face burns are a singular pathology with great functional and psychological impact in the patients suffering them. The ears play a fundamental role in personal interactions and damage to this organ results in physical and emotional distress. The reconstructive treatment of the burned ear is a challenge. Multiple procedures have been described to achieve success in the reconstruction of the burn...

A pointed, narrow and exaggeratedly upturned nasal tip and concave dorsal profile can give the nose an unnatural and artificial appearance that is the unmistakable hallmark of plastic surgery. As a result of changes in social attitudes, noses that have evidently been operated on are no longer acceptable and requests are made for correction. While a more natural dorsal profile can be obtained wi...

The first use of polymethyl methacrylate (PMMA) as a dental device was for the fabrication of complete denture bases. Its qualities of biocompatibility, reliability, relative ease of manipulation, and low toxicity were soon seized upon and incorporated by many different medical specialties. PMMA has been used for (a) bone cements; (b) contact and intraocular lens; (c) screw fixation in bone; (d...