Predictors Associated With Seeking Orthodontic Treatment, Compliance and Treatment Success (PONCOS)

Aim: to search for reasons for seeking orthodontic treatment, compliance during orthodontic treatment, drop-out from orthodontic treatment and success of orthodontic treatment. Methods: evaluation before, during and at the end of orthodontic treatment. Clinical and diagnostic evaluation of complexity before and at the end of orthodontic treatment, evaluation of awareness of treatment need, impact on social and psychological aspects, functional disturbances, impact of malocclusion on quality of life, social interaction, ability to perform daily activities.

Data will include diagnostic measurements on study casts, x-rays, and data from questionnaires given to children and parents. Statistical analyses will explore predictors of treatment success with treatment need, compliance and psycho-social domains.

CPQ 11-14, answers on 5-point Likert scale (0-4), score range 0-16, higher score means greater impact of oral symptoms on quality of life

CPQ 11-14, answers on 5-point Likert scale (0-4), score range 0-16, higher score means greater impact of functional limitations on quality of life

CPQ 11-14, answers on 5-point Likert scale (0-4), score range 0-16, higher score means greater impact of emotional wee-being on quality of life

CPQ 11-14, answers on 5-point Likert scale (0-4), score range 0-16, higher score means greater impact of social well-being on quality of life

rating scale, answer on 5-point Likert scale (0-4), higher score means greater satisfaction with dental apperance

rating scale, answers on 5-point Likert scale (0-4), higher score means greater self-perceived treatment need

CPQ 11-14, answers on 5-point Likert scale (0-4), score range 0-32 for SF8 and 0-64 for SF16 (sum of all items in short-form 8 and 16 instruments), higher score means higher impact of oral disorders on quality of life

P CPQ, answers on 5-point Likert scale (0-4), score range 0-24, higher score means greater impact of children's oral health status on oral symptoms, as perceived by parents / caregivers

P CPQ, answers on 5-point Likert scale (0-4), score range 0-28, higher score means greater impact of children's oral health status on functional limitations, as perceived by parents / caregivers

P CPQ, answers on 5-point Likert scale (0-4), score range 0-32, higher score means greater impact of children's oral health status on emotional well-being, as perceived by parents / caregivers

P CPQ, answers on 5-point Likert scale (0-4), score range 0-40, higher score means greater impact of children's oral health status on social well-being, as perceived by parents / caregivers

P CPQ, answers on 5-point Likert scale (0-4), score range 0-124 (sum of subscales), higher score means greater impact of children's oral health status on quality of life, as perceived by parents / caregivers

FIS questionnaire, answers on 5-point Likert scale (0-4), score range 0-20, higher score means greater impact of children's oral health status on parental/family activity, as perceived by parents / caregivers

FIS, answers on 5-point Likert scale (0-4), score range 0-16, higher score means greater impact of children's oral health status on parental emotions, as perceived by parents / caregivers

FIS, answers on 5-point Likert scale (0-4), score range 0-16, higher score means greater impact of children's oral health status on family conflict, as perceived by parents / caregivers

FIS, answers on 5-point Likert scale (0-4), score range 0-4, higher score means greater impact of children's oral health status on financial burden, as perceived by parents / caregivers

FIS, answers on 5-point Likert scale (0-4), score range 0-56 (sum of subscales), higher score means greater impact of children's oral health status on family, as perceived by parents / caregivers

CPQ 11-14, answers on 5-point Likert scale (0-4), score range 0-16, change in sum score from baseline to one year of appliance, higher score means greater impact of change of oral symptoms on quality of life

CPQ 11-14, answers on 5-point Likert scale (0-4), score range 0-16, change in sum score from baseline to one year of appliance, higher score means greater impact of change in functional limitations on quality of life

CPQ 11-14, answers on 5-point Likert scale (0-4), score range 0-16, change in sum score from baseline to one year of appliance, higher score means greater impact of change in emotional well-being on quality of life

CPQ 11-14, answers on 5-point Likert scale (0-4), score range 0-16, change in sum score from baseline to one year of appliance, higher score means greater impact of change in social well-being on quality of life

CPQ 11-14, answers on 5-point Likert scale (0-4), score range 0-32, change in sum score from baseline to one year of appliance, higher score means greater impact of change in oral disorders on quality of life

16 items and 8 items short form questionnaires, answers on 5-point Likert scale (0-4), score range 0-64, higher score means greater impairment of quality of life

31 items, answers on 5-point Likert scale (0-4), score range 0-124, higher score means greater impairment of childrens' quality of life perceived by their parents

14 items, answers on 5-point Likert scale (0-4), score range 0-56, higher score means greater impairment of children's' quality of life perceived by their parents

Inclusion Criteria: distal molar occlusion, overjet >5 mm, cervical vertebral maturation method stages (CS) -CS2, CS3 or CS4 Exclusion Criteria: mental retardation

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