Clinical assessment of orthodontic outcomes with the peer assessment rating, discrepancy index, objective grading system, and comprehensive clinical assessment

Toru Deguchi, Tadashi Honjo, Tomohiro Fukunaga, Shouichi Miyawaki, W. Eugene Roberts, Teruko Takano-Yamamoto

Research output: Contribution to journalArticlepeer-review

41 Citations (Scopus)

Abstract

Purpose: The purpose of this study was to quantitatively assess orthodontic treatment outcomes in postgraduate orthodontic clinics at Okayama University (OU) and Indiana University (IU). Material: Using the peer assessment rating (PAR) index, the discrepancy index (DI), the American Board of Orthodontist's objective grading system (OGS), and the comprehensive clinical assessment (CCA), we evaluated pretreatment and posttreatment records of 72 patients from OU and 54 patients from IU. Results: The average pretreatment PAR score with United Kingdom weighting was 32 for OU subjects and 28 for IU subjects. Differences in maxillary and mandibular buccal alignment between schools were statistically significant (P <. 01). The posttreatment PAR scores were 7 for OU and 4 for IU. The difference in overjet between schools was statistically significant (P <. 05). The mean DI scores were 19 for OU and 17 for IU. OU patients scored significantly more DI points for crowding and mandibular plane angle compared with IU patients (P <. 05). On the other hand, they lost significantly fewer DI points for overbite and occlusion compared with IU patients (P <. 05). The mean OGS scores were 34 for OU and 33 for IU. Buccolingual inclination and overjet scores were significantly higher in OU patients compared with IU (P <. 05). The mean CCA score was approximately 4 points for both OU and IU. Conclusions: These data suggest that these indexes are useful for comparing treatment outcomes between clinics. They were able to identify specific problems in treating Asian patients.

Original languageEnglish
Pages (from-to)434-443
Number of pages10
JournalAmerican Journal of Orthodontics and Dentofacial Orthopedics
Volume127
Issue number4
DOIs
Publication statusPublished - 2005 Apr
Externally publishedYes

ASJC Scopus subject areas

  • Orthodontics

Fingerprint

Dive into the research topics of 'Clinical assessment of orthodontic outcomes with the peer assessment rating, discrepancy index, objective grading system, and comprehensive clinical assessment'. Together they form a unique fingerprint.

Cite this