Evaluation of orthodontic treatment, retention and relapse in a 5-year follow-up: A comparison of treatment outcome between a specialist and a post-graduate clinic.

The aim of this study was to evaluate and compare orthodontic treatment between a specialist clinic and a post-graduate clinic. A long term follow-up study was done 5 years after orthodontic treatment ended. Eighty-one individuals treated at the Post-graduate clinic at the Department at Orthodontics, University Clinics of Odontology, Göteborg, and 84 individuals treated at the Orthodontic Specialist Clinic in Vänersborg, the county of Västra Götaland were examined. The Peer Assessment Rating (PAR) index was used on pre-, post-treatment and 5-year follow-up study casts The percentage reduction in weighted PAR (WPAR) scarer after treatment and at the 5-year follow up did not differ significantly between the clinics. There were significant higher pre-, post-treatment and 5-year follow-up PAR and WPAR scores patients from the Specialist Clinic as compared with patients from the Post-graduate Clinic. In the whole sample 97.6% of the patients were improved or greatly improved after treatment and 95.8% were still improved or greatly improved 5 years after treatment. Sixty-seven percent of the patients still had retainers in one or both arches at the 5-year follow-up. The WPAR scores are one factor that indicates the high quality of the treatment process in both clinics. The higher post-treatment PAR scores in the Specialist Clinic may be because a larger number at patients were treated only in one jaw at this clinics. [ABSTRACT FROM AUTHOR]

Syftet med denna retrospektiva långtidsstudie, var att utvärdera behandlingsresultat vid en specialist- och en utbildnings klinik 5 år efter avslutad ortodontisk behandling. Åttioen patienter behandlade vid ST utbildingskliniken vid Odontologen i Göteborg, och 84 patienter behandlade vid tandregleringskliniken i Vänersborg deltog i studien. Peer Assessment Rating (PAR) index beräknades på modeller tagna före, omedelbart efter och 5 år efter behandling. Resultatet visade ingen statistiskt signifikant skillnad mellan klinikerna avseende procentuell förbättring vid avslutad behandling eller 5 år efte avslutad behandling. Patienterna behandlade vid specialistkliniken hade högre PAR index och WPAR index, såväl före, efter, som 5 år efter avslutad behandling. I studien påvisade 97,6 % förbättring eller väsentlig förbättring av bettavvikelsen efter behandling och 95,8 % var fortfarande förbättrade eller väsentligt förbättrade 5 år efter behandling. Fem år efter avsultad behandling hade 67 % patienterna kvar sin retention, i en eller båda käkarna. Av resultaten framgår att kvalitén på behandlingen var hög vid båda klinikerna. Emellertid var PAR och WPAR index något högre vid specialistkliniken, dvs behandlingsresultaten var något sämre, såväl efter behandling som 5 år efter behandling vid uppföljningstillfället. Detta resultat bero troligen på att fler patienter i specialistkliniken behandlades enbart i en käke. [ABSTRACT FROM AUTHOR]

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