The relationship between the severity of malposition of the frontal teeth and periodontal health in age 15-21 and 35-44.

INTRODUCTION: In the recent past there has been an increase in the number of adults seeking orthodontic treatment therefore special attention to periodontal status of these patients needs more careful evaluation. Periodontal considerations in adult orthodontic treatment are increasingly important as patients become older. The aim of the study was to assess the interrelationship between the severity of malposition of frontal teeth with periodontal health considering to age in Latvian population. METHODS: The data were analyzed from a detailed crossectional study in Latvian population. Selected samples consisted of two age groups: 15-21 (n=323) and 35-44 (n=286) years old. For the assessment of periodontal health CPI scores was analyzed for upper frontal sextant. For assessment of malocclusion 2 components of ICON index were used: upper arch crowding and incisor overbite. The differences in the distribution of ICON index and CPI index between age groups were tested using Pearson chi(2)test. Statistical significance of the differences in the mean values was tested using t-test. Possible interaction between above mentioned indexes was tested by means of analysis of variance. RESULTS: Upper arch crowding and incisor overbite severity increase with age was statistical significant. There was statistically significant interrelation between upper arch crowding degree and incisor overbite and CPI scores severity in the age 15-21 and was not in the age 35-44. However comparing higher degree of the crowding and overbite severity to percent of subjects with bleeding, calculus and periodontal pockets greater percents of measurements were in older group. CONCLUSIONS: 1. Severity of upper arch crowding and overbite statistically significant increased with age with remarkable increasing of periodontal problems. 2. Interrelation between severity of upper arch crowding, incisor overbite and CPI scores was statistically significant in age group 15-21.

The severity of malocclusion and need for orthodontic treatment in correspondence with the age.

Awareness of the age related situation as to the malocclusion prevalence in population and orthodontic treatment need is very important and useful for planning an orthodontic care, especially taking into account the interdisciplinary aspect of the problem. The aim of this study was to investigate the degree of severity of malocclusion and the need of orthodontic treatment in three different age groups of population in Latvia. The study group comprised samples of 12-13-yr-olds (n=46), 18-yr-olds (n=32) and 35-44-yr-olds (n=278). The Index of Complexity, Outcome and Need (ICON) was used for the assessment of the results. In order to provide the accuracy use of ICON, more than 4 missing teeth and prosthetic restorations were chosen as an exclusion factor for the age group 35-44 years. A statistically significant difference was determined between the mean ICON values in 12-13 and 18 year-old age groups. Professionally defined orthodontic treatment need according to ICON score >43 was determined to be higher in the age group 18 year-olds. Overall, the tendency for orthodontic treatment complexity grade was observed to increase with the age.

Validation of a Latvian and a Russian version of the Oral Health Impact Profile for use among adults.

BACKGROUND. The need for appraisal of oral health-related quality of life has been increasingly recognized over the last decades. The aim of this study was to develope a Latvian and a Russian version and test the validity of the Oral Health Impact Profile (OHIP-49) for use among adults in Latvia. METHODS. The original English version of the OHIP-49 was translated using the forward-backward technique, pilot-tested, and then applied to 60 adults aged 18 years and above. The questionnaire was filled out during face-to-face interviews conducted by one specialist. The internal consistency of the questionnaire was evaluated using Cronbach's alpha (α) coefficient and inter-item and item-total correlations. Discriminant and convergent validities were assessed. RESULTS. Cronbach's α was estimated to be 0.96. Inter-item correlations coefficients ranged from 0.19 to 0.91, with averige value 0.35, while item-total correlations coefficients from 0.14 to 0.86. CONCLUSIONS. The OHIP-49 is a reliable and valid questionnaire for the assessment of OHRQoL among adults in Latvia.