Compound odontoma in the mandible--case study and literature review.

INTRODUCTION: Odontomas constitute a developmental defect of hard dental tissues and are classified as benign odontogenic tumours. They are composed of all dental structures and tissues: enamel, dentin, cementum and pulp. As regards histomorphological features, two types of odontomas have been differentiated: complex and compound. Odontomas represent from 4.7% to 76% of odontogenic tumours. Their aetiology has not been fully understood, yet injury, infection and genetic factors are often named among the causes. Odontomas are usually detected by chance in radiographic images taken in relation to disrupted eruption or mislocation of teeth. AIM OF STUDY: To present the case study of an erupting compound odontoma on the right side of the mandible in an 11-year-old girl. MATERIAL, METHODS AND RESULTS: The analysis covered medical documentation of the patient, diagnostic casts, orthopantomographs and cone beam computed tomography scans. The case study has been complemented with the review of up-to-date literature. A lesion composed of 30 odontoids was removed during one-day surgery without subsequent augmentation with bone substitute material. There were no post-surgery complications. A follow-up orthopantomograph taken 3 months later showed that the wound had been healing correctly, which made it possible to plan subsequent orthodontic treatment with a fixed appliance. CONCLUSIONS: 1. Odontomas are benign lesions which can be removed during one-day surgery without the absolute need of augmentation with xenogenic or allogenic material. 2. The pressure exerted by the plate of a removable appliance is very likely to initiate the eruption of the odontoma.

Assessment of connection between the bite plane and body posture in children and teenagers.

AIM: Attempt to compare the occlusion condition in groups of children with different body posture. MATERIAL AND METHODS: 336 children aged from 8 to 14 years were investigated. The subjects were selected in orthodontic clinics (237 children) and at schools (98 children). All participants were divided into groups with different body posture according to Kasperczyk's point method. The comparison of the occlusion quality was performed with the use of a scale developed by Emmerich-Poplatek. RESULTS: The studied group comprised following number of persons: 12 (3.56%) with no malocclusion, 37 (10.98%) with mild, 162 (48.37%) with moderate and 124 (37.09%) with severe malocclusion. In relation to the body posture, 52.67% of the participants had correct posture, 45.53 % had a faulty posture of mild degree and 1.78% of severe degree. A considerable differentiation of the occlusion condition was discovered within the three groups. In view of a small number of participants with a faulty posture of considerable degree (n=6) the comparative analysis of the occlusion condition was performed between the group with a correct body posture and group with faulty posture (created by combining group 2 and 3). The result of the analysis suggests a significant differentiation of the occlusion condition between the groups mentioned above (p<0.01). CONCLUSION: Children with faulty postures present more intense malocclusions than children with a correct body posture. Results of this type suggest the need for interdisciplinary look at people with malocclusions whose therapy should involve body posture correction.