[Assessment of degree and extent of resorption of incisor roots adjacent to impacted maxillary canines]. / Ocena stopnia i rozleglosci resorpcji korzeni zebów siecznych sasiadujacych z zatrzymanymi klami góornymi.

UNLABELLED: The object of the study was to assess the degree and extent of root resorption of incisors adjacent to impacted maxillary canines on the basis of CT examination, as well as presenting the effect of patient's age and localisation of the impacted canines upon the resorption process. MATERIAL AND METHOD: The study comprised 65 patients with suspected impaction of permanent maxillary canine. In all of the subjects pantomographic x-rays were performed. 44 patients aged 13-31 (average 17.1 +/- 4.5) were found to present with an overlap of the crown of impacted canine over the incisor roots, in which case a CT scan was performed. The patients under study were divided into three smaller groups according to age: group I (13-15 years of age) comprising 18 persons (40.9%) with 23 impacted canines (42.6%); group II (16-18 years of age) with 14 persons (31.8%) and 18 impacted canines (33.3%), and group III (19-31 years of age): 12 persons (27.3%) and 13 impacted canines (24.1%). The CT scans (including multiplanar and 3D reconstructions) were used to localise the impacted canines as buccal, palatal and horizontal. Also, the condition of the roots of lateral and/or central incisors was assessed. Moreover, the effect of impacted canine position and of the patient's age on occurrence and extent of incisor root resorption was analysed. RESULTS: Of the total of 54 impacted permanent maxillary canines, 41 (75.9%) were positioned palatally, 10 (18.5%) buccaly, and 3 (5.6%) horizontally. There were 31 cases (64.6%) of lateral incisor root resorption, of which in 18 (58.1%) resorption was deep, and in 13 (41.9%) it was light. The most damage (86.9) was found in the youngest group. There were also 8 cases (44.4%) of central incisor root resorption found primarily in the second age group. Statistically significant association between the position of the impacted CONCLUSIONS: A CT scan allows assessment of degree and extent of the resorption of lateral incisor roots adjacent to impacted maxillary canines. Age of patients is a significant factor which has an effect on occurrence of damage to incisor roots. Also the position of impacted canines has an effect on the process of resorption of incisor roots. Computed tomography still remains the method of choice in assessment of root resorption in teeth adjacent to impacted teeth.

[Evaluation of oral and orthodontic appliance hygiene in orthodontically treated patients]. / Ocena higieny jamy ustnej i aparatów regulacyjnych u pacjentów leczonych ortodontycznie.

The purpose of this study was to evaluate the oral hygiene of orthodontically treated patients. The hygiene of orthodontic appliances was also examined. Two kinds of research were conducted. Approximal Plaque Index and the presence of tartar on orthodontic appliances were clinically assessed. At the same time patients were questioned on their oral hygiene habits (mainly concerning the ways and frequency of cleaning their teeth and appliances). Ninety seven patients were examined, age 8-49 years, 72 were treated with removable, 25 with fixed appliances. It was found that oral hygiene of examined patients was unsatisfactory without correlation to the kind of appliance used. The tartar was more frequently present on removable appliances, fixed ones had more plaque.

[Dental age in the relation with nutrition model of school children from swimming classes of championship school]. / Wiek zebowy w relacji do sposobu zywienia uczniów z klas plywackichszkoly mistrzostwa sportowego.

The aim of this work was the comparison of calendar age with dental age in the aspect of basic nutritional ingredients intake with precise taking into consideration microelements, macroelements and vitamins. 79 schoolchildren from swimming classes of championship school in Cracow aged 10-13 were included in the examination. Among this group of pupils 24-hour recall and complex dental examination including the estimation of dental status, the hygienic status of oral cavity were conducted and the presence of dental and occlusion defects were estimated. 24-hour recall including 3 following days contained the number of products in every meal, the number of meals and the time of their consumption. The schoolchildren were divided into 3 groups on the ground of the difference between dental and calendar age. Dentition on time (no more than 5 months difference between dental and calendar age) was stated by 25 pupils--group I. Accelerated dentition of fixed teeth was observed by 36 pupils--group II and delayed dentition by 18 persons--group III. In all groups lower than safe calcium intake (80% of pupils from these groups) and iron intake (55%) was noticed. In the range of left micro- and macroelements the disturbances in nutritional status were mainly stated bypersons with delayed dentition. The shortages in Magnesium intake concerned 67% of school children and in Zinc intake--72%. In the group of schoolchildren with accelerated dentition these shortages were about 40%. In the range of vitamins intake low niacin intake (39% of schoolchildren) and riboflavin intake (25%) were stated. The differences among these groups were observed only in thiamine intake (33% from group II and 19% from group III). In the group III more often low energetic value of daily nutrient intake was stated.