PAR Index in the Evaluation of the Stability of the Orthodontic Treatment Results. A Review

Abstract

Summary:The evaluation of the treatment results is normally done to estimate the nature and quality of work, so that justice can be done to the work that we do and also that the patients will be satisfied. The primary motive of every orthodontist should be to treat the patient effectively and successfully with long lasting results. Thus the patients are to be assessed, using an appropriate method. PAR index was developed in the recent years to evaluate the treatment results and it is considered as a simple, objective and a reliable manner for evaluating the stability after orthodontic treatment. The index can be applied to different components of the dentition and scores are applied to each component after which the individual scores are multiplied with their respective weightings to balance the impact of the individual components of the overall result. They are then summed up to establish an overall total. In this manner, the method was carried out for the study casts of the three different phases of the treatment i.e. before the onset of the treatment, immediately after treatment and 2 years after treatment for assessing the stability after orthodontic treatment.

Sınıf II Divizyon 1 Malokluzyonlu Hastada Headger İle Çekimsiz Ortodontik Tedavi Başarısının PAR İndeksi İle İncelenmesi

“…PAR indeksi, sadece tedavi sonucunun kalitesini ölçmek açısından değil, aynı zamanda ortodontik tedaviden sonra oklüzyonun stabilitesini değerlendirmek için de basit, geçerli, objektif ve güvenilir bir yöntemdir (Richmond ve ark., 1993). Günümüzde zaten ortodontik tedaviden sonra stabiliteyi değerlendirme yöntemi olarak birkaç çalışmada kullanılmaktadır (Ramanathan, 2006). Ancak oklüzal indekslerin birtakım sınırlamaları bulunmaktadır.…”

Orthodontic Treatment and Healthcare Goals: Evaluation of Multibrackets Treatment Results Using PAR Index (Peer Assessment Rating)

“…The most commonly used index to assess orthodontic success is Peer Assessment Rating Index (PAR), which was developed to measure how much a patient deviates from normal occlusion and alignment [ 2 ]. This index has been used to evaluate the effects of therapy in different circumstances: the use of fixed and removable devices [ 5 ], the comparison of orthodontic treatment between private practices and orthodontics schools [ 6 ], the evaluation of the occlusal stability after orthodontic treatment [ 7 ], early treatments [ 8 ], and the outcome of orthognathic surgery [ 9 ].…”

Comparison of early treatment outcomes rendered in three different types of malocclusions

“…The difference in scores between pre-and posttreatment casts reflects the degree of improvement and, therefore, success of treatment. 11,15 Although some studies have attempted to quantify the dental and occlusal changes after early treatment using PAR index, they did not address them in three different types of malocclusions. [16][17][18] The purpose of this study was to quantify the changes after early treatment in Class I, II, and III malocclusions based on weighted PAR score reduction.…”