OBJECTIVES The aims of this study were to explore how image compression affects density, fractal dimension, linear and angular measurements on digital panoramic images and assess inter and intra-observer repeatability of these measurements. STUDY DESIGN Sixty-one digital panoramic images in TIFF format (Tagged Image File Format) were compressed to JPEG (Joint Photographic Experts Group) image...

Background and objective: A deep bite malocclusion may be due to skeletal dental factors. The analysis of the etiological factors have an influence on treatment plan. aim this study was exploration most common that contribute in Yemeni individuals, as well correlations between them. Material methods: a cross-sectional prospective conducted evaluate 136 individuals with bites using casts lateral...

ULLER (1954) in discussing the errors associated with estimating the frequency of lethals induced on the X chromosome in gonial or primordial germ cells of the male gives perhaps the most generally applied definition of germinal selection. “This term refers to the fact that some of the lethals, especially those involving deficiencies, kill or retard the proliferation of the very cells in which ...

Background: The determination of sex and age individual is important in forensic practice medico legal purposes. Mandible may play a vital role estimation as it the most dimorphic bone skull that often recovered intact. present study was conducted to evaluate reliability mandibular measurements gender seen on digital panoramic radiographs. Aims Objectives: aim compare seven parameters ramus obt...

objective: osteoporosis is the most common metabolic disease of the bone decreasing bone mineral density (bmd) particularly in postmenopausal women. on the other hand, panoramic radiography has several applications in dentistry. it appears that by calculating some indices on panoramic radiographs, we may be able to predict the risk of osteoporosis in high-risk individuals. the present study was...

Chin caps have been used for the correction of primary anterior crossbites, but previous studies of the treatment effects have highlighted problems such as pressure on the temporomandibular joint (TMJ). Therefore, to reduce pressure on the TMJ, a functional orthodontic appliance, the Yanagisawa Class III (YC3) shield was developed to improve the overjet in the primary dentition. The aim of this...

The aims of the study were to identify craniofacial characteristics in patients with the rough hypoplastic amelogenesis imperfecta (AI) phenotype and to evaluate whether craniofacial variables are related to a mutation in either of the two genes associated with AI, enamelin (ENAM) and amelogenin (AMGX). Eight children (five males and three females) with rough hypoplastic AI phenotype, aged 6.5-...

Nine monoand di-chloro-s-triazine (Procion) dyes (Table) have been tested for possible use as vital markers in rhesus monkeys (Macaca mulatta). Goland and Grand (Am J Phys Anthropol 29:201-218, 1968), Prescott, Mitchell, and Fahmy (Am J Phys Anthropol 29:219-224, 1968), and Seiton and Engel (Am J Anat 126: 373-391, 1969) have demonstrated that certain types of reactive dyes are preserved in dec...

OBJECTIVES The impaction of the second mandibular molar (MM2) has recently become more prevalent. Several etiological hypothesis have been proposed to investigate the association between skeletal features and impaction of MM2. The aims of this study were to analyze the skeletal features in patients with MM2 impaction and the association between arrested eruption of MM2 and the presence of the t...