Assessment of Maximum Bite Force in Oral Submucous Fibrosis Patients: A Preliminary Study

Objective: To determine the maximum bite force (MBF) in oral submucous fibrosis (OSMF) patients and to compare them with that of healthy subjects. Material and Methods: Twenty patients who were clinically confirmed, as OSMF and 20 healthy controls matched for age, gender, and number of intact functional teeth were included in this study. For each subject, age, gender, weight, height and body mass index (BMI) were recorded. The MBF registration was carried out by the two evaluators, who were previously calibrated. Bite force was measured in the first molar region using a force transducer occlusal force meter for each subject seated at the upright position, with Frankfort's plane nearly parallel to the floor, and no head support. The Student’s independent t-test was used to determine the statistical significance in relation to mean height, weight, BMI and the presence of number of intact teeth and MBF between the healthy subjects and OSMF individuals. A comparison of grades of OSMF with all variables was carried out by one-way ANOVA test. Results: No significant difference was found in mean age, mean height, weight, BMI and the presence of the number of intact teeth between healthy individuals and OSMF patients. The mean MBF in healthy subjects was 628.23 ± 24.39 N and 635.47 ± 31.22 N in OSMF patients. Even though the healthy subjects reported a higher MBF than OSMF patients did, the difference was statistically non-significant. With regards to sides, no significant difference was observed in mean MBF in healthy subjects and OSMF patients on the right (p=0.7818) and left side (p=0.6154). Conclusion: The healthy subjects reported higher MBF values than OSMF patients did and the difference was statistically non-significant

Osteosarcoma of maxilla

Osteosarcoma is the primary malignancy of bone. Osteosarcoma of the jaw (JOS) is very rarely encountered in the oral cavity compared to osteosarcomas of long bones. Therefore, general dentist should be aware of the initial clinical and radiographic findings. The chief complaint of patients with long bone osteosarcoma is pain, whereas patients with JOS usually have painless swelling as the first sign. Lack of pain may result in delay of diagnosis. This paper documents one such case of 40-year-old female with an expansile lesion of maxilla, which was completely asymptomatic and later diagnosed as osteosarcoma

Facial plexiform neurofibroma in a 13-year-old girl with neurofibromatosis-1

Neurofbromatosis (NF) is an autosomal dominant disorder that affects the bone, the nervous system, soft tissue and the skin. NF is a neurocutaneous condition that can involve almost any organ system existing in two subtypes. NF1 is the most common subtype and is referred to as peripheral NF. Plexiform neurofibromas are diffuse, elongated fibromas coursing along the nerves. These lesions frequently involve the trigeminal or upper cervical nerves- Though plexiform neurofibroma occurs in only 5% of patients with NF 1, it is considered pathognomonic feature of NF1. We present a case of plexiform neurofibroma in the left side of the face in a 13-year-old girl with NF1

Mesenchymal chondrosarcoma of the jaws: A series of two rare cases

Chondrosarcoma (CS) is a malignant neoplasm that results in abnormal bone and cartilage growth. Although CS is rare, it is the second most common primary bone malignancy. Mesenchymal chondrosarcoma (MC) is a rare histological variant of CS that accounts for only about 1 % of all CS and has high predilection for the head and neck region. It is usually seen in younger age group compared to conventional CS and the maxillary alveolus is the most common site. The tumor is unique because of its aggressive growth with a high tendency for late recurrence and delayed metastasis- We present two cases of MC, one case involving the mandibular condyle and the second, a metastatic CS with the primary in the clavicle

Metastatic hepatocellular carcinoma in the maxilla and mandible, an extremely rare presentation

Malignancy is characterized by anaplasia, invasiveness, and metastasis. Primary oral squamous cell carcinoma is the most prevalent oral malignancy, but secondary malignancy from distant sites have also been reported. Hepatocellular carcinoma (HCC) is a common primary liver malignancy that frequently metastasizes during the course of the disease, but < 1% of cases show oral involvement. Such secondary neoplasms do not have any pathognomonic clinical or radiologic findings, and therefore they pose a diagnostic challenge. Hence, in the differential diagnosis of malignant tumors of the oral cavity, it is essential to consider the occurrence of both primary as well as metastatic tumors despite the low incidence of the latter. A rare case of HCC metastasizing to both the maxilla and mandible is presented, in which the patient succumbed to the disease as a result of the delay in diagnosis

Hutchinson-Gilford Progeria Syndrome: A Rare Genetic Disorder

Hutchinson-Gilford progeria syndrome (HGPS) is a rare pediatric genetic syndrome with incidence of one per eight million live births. The disorder is characterised by premature aging, generally leading to death at approximately 13.4 years of age. This is a follow-up study of a 9-year-old male with clinical and radiographic features highly suggestive of HGPS and presented here with description of differential diagnosis and dental consideration. This is the first case report of HGPS which showed pectus carinatum structure of chest