No abstract

Orthodontics is a specialty of dental medicine that discovers and treat dento - maxillary abnormalities (or lack of teeth alignment - malocclusions - unsightly dental rotation, lack of congruence of the two dental arches) solving both aesthetic and functional problems ;contributes to improving dental and facial aesthetics, and implicitly to improving psychological well-being, self-esteem and quality of life. Orthodontic treatment is a support for multidisciplinary approach with other dental specialties in order to obtain facial and dental aesthetics; seeks to improve the appearance of smile and occlusion (bite) so that the teeth can bear without trauma the daily forces sore from the time of mastication; has the potential to eliminate future dental problems, including abnormal teeth wear. Dento-maxillary abnormalities synthesize current concepts of normal occlusion and explain the mechanisms by which dento-maxillary abnormalities occur, the morphological differences that allow classification and how they can affect the individual�s appearance. The study includes a wider group of pediatric patients aged between 7 and 11 years, growing showing a diverse pathology, periodontal dental trauma, dental abnormalities, which may require the prosthesis. It can be argued that in most chromosomal syndromes, oro-facial abnormalities are major symptoms as pathognomonic value for clinical diagnosis; involvement of other body regions in these syndromes are frequently nonspecific and common to several syndromes.The great variability of their treatment measures used in dental abnormalities requires knowledge of their causal factors, as well as their mechanism of action and production.

Background and Objectives: Alveolar ridge augmentation in the complex bone defect is a popular topic in implantology. Guided bone regeneration (GBR) is one of the most commonly applied methods to reconstruct alveolar bone. The application of a membrane is the fundamental principle of GBR. There are many membrane types used in oral surgery, but the advantage of the titanium mesh is the rigidity which provides space maintenance and prevents contour collapse. The smooth surface also reduces bacterial contamination. Using computer-aided design (CAD) and computer-aided manufacturing (CAM) in dentistry allows us to obtain the perfect architecture form of the mesh, which covers and protects the bone reconstruction. Case presentation: We present a surgical case of a 27-year-old female patient with severe aesthetic bone atrophy after a deficient odontectomy. Based on the GBR clinical applications, the technique consists of bone reconstruction and a customized titanium mesh application. Using mesh titanium in this case presentation was a reliable alternative to perform a lateral alveolar bone augmentation and reconstruct ridge deformities before reaching an ideal implant placement. Conclusions: According to our case report, the customized titanium mesh could be a valuable option for guided bone regeneration in aesthetic maxillary defects.

The study aimed to determine the prevalence of dental midline deviation in an orthodontic group of patients.The study was performed on 384 orthodontic patients (164 boys and 220 girls), between 6-23 years old. The data collected from orthodontic records were analysed according to the gender, age stages, environments areas, type of dentition and Angle Classes of malocclusions. All analyses were carried out using the SPSS. In the studied group the prevalence of dental midline deviation was 20.70%. The prevalence of dental midline deviation was increased in girls (12.24%), in patients over 12 years old (8.35%), from urban areas (14.32%), with mixed dentition (11.45%) and with Class I (11.20%) and II division 1 (6.25%) malocclusions. We founded statistically significant high correlations between dental midline deviation and age stages (p=0.028), type of dentition (p=0.001) and Angle classes of malocclusions (p=0.006). The dental midline deviation, commonly encountered in orthodontic practice, must be accurately diagnosed from the beginning of the treatment because the symmetry of the midlines is an essential criterion in achieving the aesthetic and functional objectives of the orthodontic treatment.

Selection of sealing material is a problem in terms of long-term durability. In this regard, we have been investigating the in vitro structure and in vivo retention of composite resin sealant with BIS-GMA. Bi-dimensional and three-dimensional analysis by AFM highlights a homogeneous structure with no structural retaining areas of the material. Comparative in vivo and vitro evaluation of sealing resin revealed a correlation of the analyzed aspects in terms of the retention of the material used.