Abstract Background: Although mast cells (MCs) have been implicated in promoting angiogenesis some malignant tumors, especially of the aerodigestive tract, little is known oral squamous cell carcinoma (SCC). Methods: A retrospective study was conducted to elaborate upon correlation between MCs and tumor 26 cases SCC, six pre‐malignant dysplasia, 10 hyperkeratosis, normal mucosa by means immunohistochemical technique. Results: The all lesions strongly expressed tryptase. densities...

Objectives: The aim of this study was to assess the accuracy cone beam CT (CBCT) in detecting vertical root fractures and compare with images from an intraoral sensor conventional film. Methods: 60 extracted, single-rooted human teeth were divided equally into two groups: a control group 30 induced fracture teeth. All randomly placed sockets six dry mandibles. Each tooth imaged by three modalities: CBCT, digital radiography F-speed Three angulations (an orthogonal projection additional...

Purpose : The aim of this study was to compare the diagnostic accuracy cone-beam computed tomography (CBCT) images and bitewing in detection secondary caries.Materials Methods One hundred twenty proximal slots Class II cavities were randomly prepared on human premolar molar teeth, restored with amalgam (n= =60) composite resin =60).Then, artificial caries lesions created using round steel No. 4 bur.The teeth radiographed a conventional technique two CBCT systems; Pax-500ECT Promax 3D.All...

The objective of this study was to evaluate and compare the accuracy image quality root surface area (RSA) measurements obtained with various cone-beam computed tomography (CBCT) protocols, relative gold standard micro-computed (CT), in an

Abstract Aim The aim of the present study was to determine prevalence, location, size, and tooth type pre‐eruptive intracoronal radiolucencies ( PEIR ) from panoramic radiographs in Thai patients. Methods A retrospective conducted on 1599 629 males 970 females with an age range 4‐20 years (average age: 14.0 ± 4.0 years). Each radiograph reviewed by two calibrated examiners. sex patients, lesions were recorded. SPSS program used for statistical analysis. Results found 0.32% samples (29/9060)...

This study assessed the accuracy of age estimates produced by a regression equation derived from lower third molar development in Thai population.The first part this relied on measurements taken panoramic radiographs 614 patients aged 9 to 20. The stage left and right was observed each radiograph modified Gat score assigned. Linear data following equation: Y=9.309+1.673 mG+0.303S (Y=age; mG=modified score; S=sex). In second study, predictive evaluated using set (539 subjects, 24 years old)....

To evaluate the diagnostic accuracy of proximal caries detection from digitized film images captured by a digital camera at different resolution settings.Twenty-five periapical radiographs 50 premolar and 25 molar teeth were photographed using camera, Sony Cyber-shot, DSC-S75 three settings: 640 x 480, 1280 960 1600 1200. Seventy-five transferred to computer, saved opened ACDSee software. In addition, PowerPoint slide was made each image. Five observers scored groups (the films, displayed...

Forensic facial reconstruction is a useful tool to assist the public in recognizing human remains, leading positive forensic investigation outcomes. To reproduce virtual face, soft tissue thickness one of major guidelines reach accuracy and reliability for three-dimensional computerized reconstruction, method that making significant contribution improving identification. This study aimed develop dataset Thai population, test its context reconstruction. Three-dimensional was conducted on four...

Abstract Preoperative radiological identification of mandibular canals is essential for maxillofacial surgery. This study demonstrates the reproducibility a deep learning system (DLS) by evaluating its localisation performance on 165 heterogeneous cone beam computed tomography (CBCT) scans from 72 patients in comparison to an experienced radiologist’s annotations. We evaluated DLS using symmetric mean curve distance (SMCD), average surface (ASSD), and Dice similarity coefficient (DSC). The...

Mandibular first molar frequently requires endodontic treatment. Understanding age-related changes in pulp-dentin complex and root canal morphologies is essential for successful restorative treatments.This study aimed to compare pulp/tooth area ratio (PTAR) dentin thickness (DT) mandibular molars different age groups through cone-beam computed tomography (CBCT) imaging.One hundred CBCT images of were divided into five groups; 20-29, 30-39, 40-49, 50-59, 60 years old older. Axial used...

(1) To compare the efficacy of a commercially available hygienic sheath and an alternative plastic bag in preventing contamination imaging plate during intraoral radiography (2) to patient discomfort when using bag.60 sterilized Size 2 plates covered with either (n = 30) or were used simulate digital periapical radiographic examination 30 volunteer patients. After disinfection, each was swabbed. The swabbed medium then plated on trypticase soy agar incubated. Bacterial colonies counted....

Abstract Most of the previous studies about nose prediction were concentrated only some landmarks nose. This study aimed to generate equations for ten in midline and alar regions forensic facial approximation. The six sellion, nasion–pronasale posterior, anterior, pronasale, nasal drop, subnasale. four region alare, superior groove, posterior inferior groove. We used skull nasal, zygomatic, maxillary bone predict Cone‐beam computed tomography scans 108 Thai subjects with normal BMI age...

We report a case of 19-year-old Thai woman who had fibrous dysplasia (FD) with rare radiographic 'sunray' appearance. The sunray appearance could have been due to either an unusual pattern calcification within the lesion or periosteal reaction.

Nose width and mouth are the distances needed to be estimated in facial reconstruction process. The previous prediction guidelines for them were mainly based on European samples, whereas Asian samples used their studies limit. Our study, therefore, intended formulate nose width, using infraorbital foramen canine a Thai population. measurements performed 3D images generated from cone-beam computed tomography (CBCT) scans of heads 108 subjects with normal BMI ages ranging 21.0–50.9 years....

Objectives: This study aimed to evaluate differences in the upper pharyngeal airway morphology between Thai children with repaired unilateral cleft lip and palate (UCLP) non-cleft children. Methods: prospective used cone beam computed tomography (CBCT) polysomnography (PSG) studies. The subjects were 34 UCLP (21 males 13 females; mean age 8.94±1.87); 32 (20 12 10.03±1.91). Dolphin imaging software measured volume most constricted cross-sectional (version 11.7 premium). Results: An...

The methods for pronasale prediction proposed by Stephan et al. (2003), Rynn (2010), Lee (2014) and Utsuno (2016) were tested in order to find applicable a Thai population. Cone-beam computed tomography data from 100 adult subjects analysed, using two- three-dimensional images. categorized into females, males regardless of sex groups. Differences between the predicted actual coordinates compared paired t-test mean absolute errors (MAEs). each two-way ANOVA with balanced block design or...

Forensic dental age estimation based on panoramic radiographs (orthopantomogram, OPG) is commonly used to assess the of children and young adolescents. Recent advances in deep learning techniques have shown that it possible accurately determine individual from these OPG images. Traditionally, sex has been considered a predictive parameter for estimation. Surprisingly, most studies not included as feature their models. This study aims investigate impact including models estimating age. Two...