Alveolar bone healing after upper incisor extraction in rats is a classical model of preclinical studies. The underlying morphometric, cellular and molecular mechanism, however, remains imprecise unique study.The aim this study was therefore to characterize the alveolar by micro computed tomographic (Micro-CT), immunohistochemical real-time polymerase chain reaction (RT-PCR) analysis.Thirty animals (Rattus norvegicus, Albinus Wistar) were divided into three groups incisors at 7, 14, 28 days....

After surgical tooth extraction, it is necessary to maintain the environment of oral cavity in appropriate conditions favor alveolar bone repair. Coffee includes multiple bioactive compounds; some these compounds can affect metabolism. The aim this study was investigate effect coffee ingestion on dynamics after extraction using confocal laser microscopy. Eight male Wistar rats, aged two months, were used and divided into groups: control group, which normal diet maintained, experimental with...

ABSTRACT The craniofacial skeleton is often described in the clinical literature as being comprised of vertical bony pillars, which transmit forces from toothrow to neurocranium axial compressive stresses, reinforced transversely by buttresses. Here, we review on microarchitecture, vivo bone strain, and finite‐element modeling facial humans nonhuman primates address questions regarding structural functional existence pillars Available material properties data do not support buttresses or...

The femur has been commonly employed for sex determination of human skeletal remains, and it is a suitable alternative to the more sexually dimorphic pelvis when this region incomplete or fragmented. purposes study include evaluation femoral sexual dimorphism generation specific metric standards estimation with in Brazilian populations. Two hundred femora (130 males 70 females) known age at death, sex, ancestry were used generate models prediction. best estimators univariable models,...

The aim of this study was to evaluate transversally the clinical correlation between lower incisor crowding and mandible third molar.Three hundred healthy volunteers (134 male 166 female), aged 20.4 (±2.4) years-old were submitted a complete examination filled up questionnaire about gender, age, total teeth number presence or absence superior inferior molar. After recent panoramic radiography evaluated. multiple logistic regression showed that none studied factors influenced mandibular...

The recognition of emissary foramens is important not only for understanding the regional neurovascular anatomy, but also to distinguish normal from potentially abnormal structures.Thus, aim this study was review literature on anatomical and clinical aspects mastoid, parietal sphenoid foramens.It found that foramen presents importance in practice because it acts as a route spread extracranial infection intracranial structures possible complications neurosurgery, due its influence performance...

The hypothesis of this study was that the peri-implant bone healing group pinealectomized rats would differ from control group. samples were subjected to immunohistochemical, microtomographic (total porosity and connectivity density), fluorochrome (mineralized surface) analyses. Objectives goal investigate cellular changes remodeling dynamics along bone/implant interface in rats. Material Methods total 18 adult male (Rattus norvegicus albinus, Wistar) divided into three groups (n=6): (CO),...

The retromolar foramen allows the passage of neurovascular bundles that contribute to nutrition and innervation pulp periodontium lower teeth.Knowledge this anatomical variation may prevent complications in anesthesia surgical procedures area serve as an landmark for ethnic identification.The aim study was evaluate impact human mandibles adult Brazilians discuss clinical related presence foramen.Were evaluated 222 mandibles, dry, adults, Brazilians, independent gender.The evaluation...

Firearms can cause fatal wounds, which be identified by traces on or around the body. However, there are cases where neither bullet nor gun is found at crime scene. Ballistic research involving finite element models reproduce computational biomechanical conditions, without compromising bioethics, as they involve no direct tests animals humans. This study aims to compare morphologies of gunshot entrance holes caused by.40-caliber Smith & Wesson (S&W), .380-caliber, and 9×19-mm Luger bullets....

Raloxifene is an antiresorptive drug, selective estrogen receptor modulator (SERM) used in the treatment of osteoporosis. Objective To evaluate proteins related to bone repair at peri-implant a rat model osteoporosis treated with raloxifene. Material and Methods 72 rats were divided into three groups: SHAM (healthy animals), OVX (ovariectomized RLX animals raloxifene). was administered by gavage (1 mg/kg/day). Tibial implantation performed 30 days after ovariectomy, euthanized 14, 42, 60...

This paper aimed to analyze stress distribution in human zygomatic pillar during masseter muscle contraction using three-dimensional finite element analysis.A model and hemi facial skull were produced based on CT-scan data.An adult male with structural anatomy integrity was used as model.Muscles forces applied at origin of elevator muscles supports the occlusal surfaces first second molars simulate a masticatory load stimulate pillar.Supports contacts.Symmetry conditions placed mid-sagittal...

The purpose of this study was to cephalometrically evaluate the pharyngeal airway space and frontal sphenoid sinus changes after maxillomandibular advancement counterclockwise rotation for class II anterior open bite malocclusion.The included 49 patients (98 lateral teleradiographs; 36 females 13 males) who were analysed in pre-operative (1 week before surgery) post-operative (6 months periods. In each teleradiography, dimensions inferior superior space, TB-PhW1 [the point between posterior...

Abstract Periodontal disease and osteoporosis are characterized by bone resorption, researchers have shown an association between these two diseases through increasing loss of systemic mass triggering alveolar loss. Green tea is a common easily accessible beverage, evidences show that flavonoid epigallocatechin gallate (EGCG) could decrease in pathologies such as periodontal disease. In order to verify its possible effects apply them the treatment prevention diseases, this investigation...

The caroticoclinoid foramen is an inconstant structure, formed by the union of anterior and middle clinoid processes.The aim this study was to perform incidence morphometry in Brazilian human skulls discuss its clinical implications.Eighty dry with sex distinction were used, 3 groups determined: General, sex, sides.The performed using a manual caliper major diameter foramina measured; values also divided general, according at least one 8.5%.According sides, 8.5% showed on right side 2.5%...

This study proposed to evaluate the mandibular biomechanics in posterior dentition based on experimental and computational analyses. The analyses were performed a model of human mandible, which was modeled by epoxy resin for photoelastic analysis computer-aided design finite element analysis. To standardize evaluation, specific areas determined at lateral surface body. configured through vertical load first upper molar fixed support ramus mandible. same configuration used computer...