Virtual planning, guided surgery, and digital prosthodontics in the treatment of extended mandible chondrosarcoma.

Chondrosarcoma is among the most common primary bone tumors in adults. In the mandible, chondrosarcoma is a very uncommon malignant cartilage-producing tumor. This case report shows how virtual planning combined with other digital technologies may improve masticatory function rehabilitation in patients with enlarged mandibular chondrosarcoma. The present study reports a case of a 52-year-old male patient who was initially diagnosed with a mandible chondroma, which was successfully excised with no evidence of malignant transformation. Nevertheless, the patient's symptoms recurred after 10 years, and a subsequent diagnosis of mandible chondrosarcoma was established, prompting the need for subtotal mandible resection and reconstruction with a fibula-free flap. Following a healing period, the patient underwent dental implant surgery to restore the mandibular dental arch, which was performed utilizing computer-aided design and computer-aided manufacturing technology, with fully guided implant placement facilitated by virtual planning. In this case report, the implant position data merging process is described from the digital impression and control model to ensure optimal passive fit of the full-arch zirconia prosthesis and discuss the importance of occlusal adjustments to avoid technical and biological complications. Virtual planning and digital technologies are crucial for the effective management of mandibular defects, allowing for accurate treatment and complete restoration of mandibular function. Their use leads to improved patient outcomes and quality of life. As technology advances, their importance in treating complex medical conditions is only expected to grow.

Lip morphometry and morphologic pattern variation by ethnicity.

The aim of this research is to document and classify common lip print patterns and lip measurements, to evaluate their variations in Polish, Russian, Lithuanian women populations. 371 women (151 Lithuanians, 145 Poles, 75 Russians) from Vilnius University participated in this research. A questionnaire and lip print collection were administered. Each lip print was divided into six sextants, examined and classified. 120 women were photographed by Vectra M3 3D (Canfield Imaging Systems, USA) camera, lip morphometry was analyzed. In all lip print sextants, Type I was the most common among Lithuanians, Type III - among Polish and Type V - among Russian women. A statistically significant difference was found between Type I lip print pattern and Lithuanian ethnicity (p = 0.001) and Type III and Polish ethnicity (p = 0.015). The values of medial vertical height of cutaneous upper lip (p = 0.045), height of upper lip (p = 0.034), philtrum width (p = 0.020), height of lower vermilion (p = 0.015), upper lip vermilion area (p = 0.022), upper lip volume (p = 0.034) and total lip volume (p = 0.05) statistically significantly varied between the ethnicities. Morphometric findings were similar to other morphometric research on Caucasians.

Oral Health among Adult Residents in Vilnius, Lithuania.

According to the World Health Organization (WHO) oral conditions may be determined by social, biological, behavioral, and psychosocial factors. The study assessed oral health status and its determinants associated with oral health conditions among adult residents in Vilnius, Lithuania. A total of 453 of 35-74-year-olds participated (response rate 63%). A self-reported questionnaire was administered. Dental caries experience (D3MFS score), periodontal probing depth (PPD), andnumber of missing teeth were assessed clinically. Data were analyzed using χ2 test, independent samples t-test, and multivariable linear regression. The mean (sd) of D3MFS scores was 67.3 (33.5), the mean (sd) number of teeth with PPD 4+ mm was 5.9 (5.3), prevalence of periodontitis was 33%, the mean (sd) number of missing teeth was 6.9 (6.8), and prevalence of total edentulism was 3.8%. Medication use was associated with all oral health conditions, while age was associated with caries experience, and missing teeth. Sugar-containing diet was associated with caries experience, and missing teeth, and smoking with caries experience and periodontal status. Systemic diseases were associated with periodontal status, while behavioral determinants, last dental visit, and use of fluoridated toothpaste were associated with missing teeth. Oral health status among adult Vilnius residents was poor. Oral conditions were associated with both biological and behavioral determinants. Oral health promotion should focus on modifying behavioral determinants.

Predictors of longer hospitalization of maxillofacial infections-a 17-year retrospective study.

OBJECTIVES: To evaluate treatment outcomes in patients with severe maxillofacial infections requiring hospital care during a 17-year period. METHODS: A retrospective cohort study reviewed 5,465 medical records, and the following data were collected: the reason for infection, locations of inflamed regions, treatment provided, bacteriological findings, and treatment outcomes. Other information included sociodemographic characteristics (age, gender), presence of systemic diseases, and smoking history. RESULTS: The annual incidence rate of patients with acute maxillofacial infections was 206 ± 19 cases with a male to female ratio 1.4:1.0, a mean hospital stay of 7.9 ± 4.9 days. Older age (>65 years), smoking and systemic diseases (diabetes), the causative tooth (molar), and need for extraoral incision predicted longer hospitalization. Intravenous penicillin was the most common drug prescribed in 50.5% of cases. A total of 132 different microorganisms were identified. The highest microorganism resistance occurred for metronidazole and the highest sensitivity was to clindamycin. CONCLUSIONS: Increased age, smoking, diabetes, causative tooth, and the occurrence of several infected spaces were associated with a longer hospital stay. Streptococcus α haemolyticus was the most common microorganism found in more than 70.0% of cases that were sensitive to intravenous penicillin.