It has been proved that platelet-rich plasma (PRP) can promote wound healing. In this way, PRP be advantageous in periodontal plastic surgeries, free gingival graft (FGG) being one such surgery.In randomized split-mouth controlled trial, 10 patients who needed bilateral FGG were selected, and two donor sites randomly assigned to experience either natural healing or healing-assisted with PRP. The outcome was assessed based on the comparison of extent closure, Manchester scale, Landry visual...

To compare the diagnostic accuracy of cone-beam computed tomography (CBCT) with that parallel (PPA) and oblique projected periapical (OPA) radiography for detection different types peri-implant bone defects.Forty implants inserted into bovine rib blocks were used. Thirty had standardized defects (10 each angular, fenestration, dehiscence defects), 10 defect-free controls. CBCT, PPA, OPA images samples acquired. The evaluated twice by 2 blinded observers regarding presence or absence type...

Background: Osteoporosis is characterized by the progressive loss of bone density, which leads to severe fractures. This study conducted evaluate diagnostic value mandibular radiomorphometric indices panoramic radiographs predict status mineral density (BMD) in postmenopausal women. Materials and Methods: Panoramic ninety women (thirty osteoporotic, thirty osteopenic, controls) with mean age 54.47 years were evaluated. Bone densitometry was performed using dual-energy X-ray absorptiometry...

The effect of metallic objects on the fractal dimension (FD), bone area fraction (BAF) and gray scale values (GSVs) cone-beam CT (CBCT) images was assessed. Also, FD, BAF GSV were compared among CBCT, digital periapical panoramic radiographies.Digital radiographs acquired from six blocks bovine rib. Additionally, different arrangements titanium implants intracanal posts created in CBCT scans taken implant-root arrangements. three radiographical modalities by analysis variance. Pairwise...

Background: Assessment of alveolar bone level in periodontitis is very important determining prognosis and treatment plan. Panoramic radiography a diagnostic tool used to screen patients. The aim the present study was assess value digital panoramic angular bony defects with 5 mm or deeper pocket depth mandibular molars.Materials Methods: In this cross-sectional study, ninety molars teeth were selected sixty patients diagnosis chronic periodontitis. Before surgery, probing performed. During...

The Prevalence of Restoration Overhang in Patients Referred to the Dental Clinic Guilan University Medical Sciences

<b>Purpose:</b> Use of chlorhexidine (CHX) gel to eliminate the malodor implant cavity may decrease friction coefficient and effective preload result in abutment screw loosening. This study aimed assess effect CHX on preload, torque, detorque values. <b>Materials Methods:</b> <i>in vitro</i> experimental was conducted three groups five implants. Group A (G1) control group no material applied cavity. In B (G2), filled with saliva before tightening. C (G3), first then gel. The abutments were...

Background: Cone-beam computed tomography (CBCT) has gained considerable use, while radiation burden remains an important concern. Aims: This study aimed at determining the entrance skin dose of thyroid gland area through exposure with normal, soft, and hard modes Vatech (Pax-i) panoramic device as well different field views (FOVs) (Pax-i 3D) CBCT system. Materials Methods: Dose measurements were performed on a head-and-neck phantom by ion chamber dosimeter. Panoramic imaging was done in...

Abstract Cervical resorption is a serious threat to the longevity of teeth. In this study, Canny edge-detection algorithm was applied on CBCT images compare accuracy original and views for diagnosing cervical in endodontically treated Intracanal metallic posts were inserted 60 extracted teeth being randomly divided into three groups: control, 0.5 mm, 1 mm resorption. scans presented observers both formats with determined by receiver operating characteristic (ROC) analysis. The DeLong test...

Background. The interdental papilla plays a crucial role in the esthetic of smile. Papilla reconstruction surgery is one most unpredictable periodontal procedures. This study compared effect non-surgical application commercial hyaluronic acid (HA) gel with an autogenous named "albumin platelet-rich fibrin" (Alb-PRF) on reconstruction. Methods. trial was conducted 46 incomplete papillae class I or II defects. were randomly divided into two experimental groups, and HA Alb-PRF (prepared from...

The purpose of this study was to evaluate the accuracy linear measurements in horizontal and vertical dimensions based on object position slice inclination cone-beam computed tomography (CBCT) images.Ten dry sheep hemi-mandibles, each with 4 sites (incisor, canine, premolar, molar), were evaluated when either centrally or peripherally positioned within field view (FOV) image slices subjected oblique orthogonal inclinations. Four types images created region: central/cross-sectional,...

Chronic periodontitis is the most common form of periodontitis. Several immune and inflammatory factors responsible for periodontal destruction have been found in gingival crevicular fluid (GCF). The current study was conducted to determine correlation between mucin alpha-amylase protein values GCF with chronic periodontitis.Forty-five patients moderate-to-severe were selected. Samples taken from a specific part single root tooth placed closed test tube containing phosphate-buffered saline...

The adsorption behavior of aniline using single-walled carbon nanotubes (SWCNTS) as adsorbents is examined under ambient conditions.The equilibrium on SWCNTS was evaluated by the Langmuir, Freundlich, Dubinin Radushkevich and Tempkin isotherms.The results showed that data for fi tted Langmuir model best within concentration range studied.Experimental time taken to attain 30 min.The energy obtained 218.25 J/mg, which indicates process endothermic a strong interaction between Aniline...

Implant fracture is a rare but devastating complication of treatment in partially or fully edentulous patients which requires prompt diagnosis. Nevertheless, studies on defining the most accurate technique for detection implant fractures are lacking. In present study, Canny edge algorithm was applied multiple radiographic modalities including parallel periapical (PPA), oblique (OPA), and cone beam CT (CBCT) with without metal artifact reduction (MAR) to examine its accuracy diagnosis...

Background: Concrescence is a rare dental anomaly in which juxtaposed teeth are united the cementum but not dentin. The incidence of reported to be highest posterior maxilla. It often involves second molar with roots near proximity those third molar. more common on maxillary and molars may inadvertently diagnosed during tooth extraction. Although exact etiology concrescence has yet been explained, it usually suspected that space restriction development, local trauma, excessive occlusal force...

Background: Burning mouth syndrome (BMS) is pain or burning sensation on the tongue other mucosal membranes with at least 4 - 6 months duration and without clinical laboratory findings. Its etiology unknown prevalence varies across studies. Objectives: The current study aimed evaluating of BMS in female patients referred to Al-Zahra Hospital Rasht, Iran, investigating its related factors. Methods: A descriptive cross sectional was conducted from March December 2015. total 2400 females...