ABSTRACT
Background: The early detection of impacted teeth is essential for the prevention of future malocclusions and possible lesions. The aim of this study is to assess the prevalence of impacted teeth and associated pathological lesions. Methods: One thousand six hundred and two panoramic radiographs were analyzed for this retrospective study. The prevalence of impacted teeth, the presence of supernumerary teeth and cystic or tumoral lesions associated, and the type of angulation of third molars using Winter's classification were accessed. The descriptive statistics and the Chi-squared test were performed (P < 0.05). Results: One thousand three hundred and ninety-seven panoramic radiographs fulfilled impacted criteria. A prevalence of 541 (38.7%) impacted teeth was observed, with the female gender significantly higher (P < 000.1). Of the total impacted teeth (n = 541), the overall mean impacted of lower third molars was 55.6%. Twenty-nine (5.3%) supernumerary teeth and four lesions were verified. The angulations most observed in the upper (76.6%) and lower (39.2%) third molars were vertical (P < 000.1) and mesioangulated (P < 000.1), respectively. Conclusion: The impacted tooth prevalence was 38.7%, more common in females than in males. The lower third molars presented the highest prevalence of impacted, and the most common angulations were vertical and mesioangulated. Only four associated lesions were observed.
ABSTRACT
STATEMENT OF PROBLEM: Computer-guided implant surgery facilitated by intraoral scanning may enhance the efficiency of the digital workflow. However, it is necessary to assess technique accuracy to evaluate the accuracy of implant placement. PURPOSE: The purpose of this clinical study was to evaluate the accuracy of a virtual computer-aided design and computer-aided manufacturing (CAD-CAM) static guided surgery technique associated with intraoral scanning in partially edentulous participants by analyzing the overlap among preoperative and postoperative cone beam computed tomography (CBCT) scans, virtual planning, and the guided surgery performed. MATERIAL AND METHODS: Eleven partially edentulous participants underwent CBCT and intraoral scanning (TRIOS3). Data were integrated into a software program (ImplantViewer 3.5) for the virtual planning of implants and 3-dimensional (3D) printing of the prototype CAD-CAM surgical guide. A total of 18 implants were placed using the CAD-CAM static computer-aided implant surgery technique (Strong SW). After 15 days, postoperative CBCT scans were made and 4 variables (angular, coronal, apical, and vertical deviation) were measured to compare the virtually planned implants and the implants placed by analyzing the overlap between preoperative and postoperative of the virtual planning and guided surgery performed using the ImplantViewer 3.5 and Rhino 6 software programs. RESULTS: Deviations were found in all parameters analyzed. The mean angular deviation was 2.68 ±1.62 degrees; mean coronal deviation, 0.82 ±0.44 mm; mean apical deviation, 1.14 ±0.44 mm; and mean vertical deviation, 0.62 ±0.44 mm. CONCLUSIONS: The implants placed using the CAD-CAM static guided surgery technique associated with intraoral scanning in partially edentulous participants exhibited angular and linear deviations when compared with virtual planning implants. However, these deviations were not clinically significant.
ABSTRACT
Dental trauma is often associated with a negative impact on the oral health-related quality of life (OHRQoL). The management of traumatized teeth is a challenge in the daily pediatric dentistry clinic, due to the sequels generated over time. Pulp necrosis is a frequent sequel that requires a pulpectomy. Antimicrobial photodynamic therapy (aPDT) is an adjuvant technique, effective in eradicating microorganisms from the root canals. This case report aimed to describe OHRQoL after endodontic treatment associated with aPDT in traumatized primary teeth of a 4-year-old female patient attended at a Dental Trauma Care Program considering a period of 12-month follow-up. The Brazilian version of the Oral Health Early Childhood Impact Scale (B-ECOHIS) was used to evaluate the OHRQoL. The dental trauma and its sequels had a negative impact on the child's OHRQoL. The proposed treatments (endodontic and restorative procedures) improved the patient's OHRQoL. The association of aPDT with conventional endodontic treatment was effective in this case. It allowed the sinus tract regression and new bone formation. Besides that, this case report emphasizes the need and importance to follow-up dental trauma cases in the pediatric dentistry clinic.
