Customized 3D-Printed Titanium Mesh Developed for an Aesthetic Zone to Regenerate a Complex Bone Defect Resulting after a Deficient Odontectomy: A Case Report.

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.

RISK FACTORS AND PREDICTORS OF CROSSBITE AT CHILDREN.

AIM: was to determine the etiological risk factors and predictors of crossbite' treatment at children. MATERIAL AND METHODS: 270 cases with crossbites and 255 controls with other malocclusions were uniformly evaluated. The crossbites cases were divided in group I (anterior crossbite), group II (posterior crossbite) and group III (anterior and posterior crossbites) and were compared between them per Angle Class malocclusions, dysfunctional and dental causes, associations with other discrepancies, as well by need and types of treatment. Binary logistic regression was used to find risk factors and predictors. RESULTS: The mean age of cases was 10.25?2.770 years. There were found significant differences between the groups of crossbites cases (p<0.05). There were identified risk factors (non-attrition of deciduous teeth, Angle Class II malocclusion and permanent teeth extraction) and protective factors of the crossbite (the tooth decay of deciduous teeth, eruption anomalies and tongue-thrust swallowing). There were found predictors for early corrective treatment (sucking habit, non-attrition and buds crowding) with a precision of 78.5%; for normal treatment (mouth breathing and buds crowding) with a precision of 71.5%; for late treatment (Angle Class III malocclusion, dental crowding and TMJ disorders) with a precision of 83.0%; for maxillary expansion (eruption anomalies and buds crowding) with a precision of 77.0%; for oral associated surgery (macrodontia and TMJ disorders) with a precision of 75.9% (HL test, p > 0.05). CONCLUSION: The risk factors were dental furthermore; the predictors of treatment were adequate with dentition, etiology and disorders at age identification, suggesting the contribution of practitioners in intercepting this orthodontic emergency.

[Canine teeth impacted in the palate--case report]. / Incluzia palatinala a caninului maxilar--prezentare de caz.

Maxillary canines have the longest period of development, the deepest area of formation and the most difficult path of all teeth. The maxillary canines are the most likely to remain unerupted or impacted. The maxillary permanent canine is considered important by virtue of its place in the scheme of functional occlusion and its contribution to facial appearance. We successfully orthodontically treated two cases with palatally impacted canines. Although both cases had palatally impacted canines, they were different due to canine position and angulation.

[Considerations regarding a prediction method for third mandibular molar eruption]. / Consideratii privind prognosticul de eruptie al molarului de minte mandibular.

UNLABELLED: Third mandibular molar eruption is an unpredictable event. MATERIAL AND METHOD: We have studied 250 patients who required orthodontic treatment in the Department of Orthodontics and Dentofacial Orthopedics, University of Medicine and Pharmacy "Gr.T. Popa" Iasi. Orthopantomograms were traced for all patients at the beginning of the orthodontic treatment. Some patients presented first lower molar removal before orthodontic treatment. RESULTS: We evaluated the difference between posterior available space and third lower molar mesiodistal dimension in order to establish the predictable values for third molar eruption. Our results show that only 17% of lower third molars have 100% chances for eruption in non extraction sample, comparative with 65-70% in extraction group. 38% of third mandibular molars have a poor prognosis for eruption in non extraction group and only 14% for the pretreatment extraction group.