Samuel Porfirio Xavier

• Abstract

  Twenty male New Zealand rabbits (3.5-4.0 kg) will be used to raise the maxillary sinus and divided into 2 groups composed of 10 animals each, according to the experimental times: 2 and 10 weeks. After bilateral sinus membrane elevation, a similar amount (50 mg) of HA / bTCP (60% hydroxyapatite, 40% beta-tricalcium phosphate, GUIDOR calc-oss CRYSTAL +, Sunstar, Etoy, Switzerland), with gra…

  Influence of argon plasma on incorporation of HA / TCP graft. Histomorphometric and microtomographic study on rabbits maxillary sinuses., AP.R

• Abstract

  The search for bone substitutes has increased considerably in recent decades. In this context, the xenogeneic bone has been used in grafting procedures in order to overcome the disadvantages of using autogenous bone. The objectives of this study are: 1) to investigate the histological characteristics of xenogenous bone grafts in block jaw rabbits; 2) to associate, by means of immunohistoc…

  Immunohistochemical, histomorphometric and microtomographic comparative study between autogenous bone and xenogeneic bone in onlay graft surgery in rabbit mandibles., AP.R

• Abstract

  Residual bone ridge atrophy in the posterior mandible is one of the most challenging conditions for the surgeon regarding the reconstruction and installation of dental implants. Several techniques and materials have been proposed and studied to try to solve this problem such as onlay autografts, interposicional autografts, bone distraction, lateralization of the lower alveolar bundle and …

  Cortico-cancellous fresh frozen allograft and bovine bone material used in posterior mandibular rigde augmentation: clinical tomographic, histomorphometric study in humans, AP.R

(Only some records are available in English at this moment)

• Abstract

  The objective of this pre-clinical study is to evaluate the properties of guided bone regeneration and the biodegradation process of a new membrane, printed in resin and developed from Acrylated Epoxidized Soybean Oil (AESO), on critical bone defects made in calvaria of rats. Comparative microtomographic, histological and histomorphometric analyzes of bone regeneration and xenograft incor…

  Use of bioresin membrane in critical bone defects. Microtomographic and histomorphometric study on rat calvaria., BP.IC

• Abstract

  The aim of the present prospective, randomized, split-mouth study is to evaluate the effectiveness of sealing Schneiderian membrane perforation using two types of collagenous bone substitute. Twelve adult female New Zealand White rabbits, weighing 3.5 to 4.0 kg, will be used. The maxillary sinus lift procedure will be performed bilaterally and a 4 mm perforation will be intentionally made…

  Use of collagenous bone xenograft for sealing Schneiderian membrane perforation in an animal model. Tomographic and histomorphometric study in rabbits., BP.IC

• Abstract

  The aim of the present prospective study is to evaluate whether different dimensions of decompressive threads in the cervical region of implants can result in optimization of the osseointegration process. Twelve female New Zealand White rabbits weighing from 3.5 to 4.0 kg will be used. Forty-eight (48) implants measuring 3.75 mm in diameter by 10 mm in height (Leader Medica®) with three d…

  Influence of decompressive cervical blades in the process of osseointegration of implants. Histological and histomorphometric study in rabbits., BP.IC

(Only some records are available in English at this moment)

• Abstract

  Regeneration of soft and hard tissue defects with methods of tissue engineering are a major aim of modern medicine. Usually the reconstruction of tissue defects requires tissue transplantation from a healthy donor site. According to the size of the tissue defect a new defect in a healthy donor region with its own morbidity has to be created.Implant dentistry is the method of first choice …

  Bone regeneration in maxillary sinus augmentation surgery with mesenchymal stem cells: in vivo study in sheep, BE.PQ