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Jang, So-Jeong; Choi, Dong-Soon; Jang, Insan; Jost-Brinkmann, Paul-Georg; Cha, Bong-Kuen

Quantitative comparison of incisal tooth wear in patients receiving one-phase or two-phase treatment for skeletal Class III malocclusion with anterior crossbite

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  • Medientyp: E-Artikel
  • Titel: Quantitative comparison of incisal tooth wear in patients receiving one-phase or two-phase treatment for skeletal Class III malocclusion with anterior crossbite
  • Beteiligte: Jang, So-Jeong; Choi, Dong-Soon; Jang, Insan; Jost-Brinkmann, Paul-Georg; Cha, Bong-Kuen
  • Erschienen: The Angle Orthodontist (EH Angle Education & Research Foundation), 2018
  • Erschienen in: The Angle Orthodontist
  • Sprache: Englisch
  • DOI: 10.2319/080817-532.1
  • ISSN: 1945-7103; 0003-3219
  • Schlagwörter: Orthodontics
  • Entstehung:
  • Anmerkungen:
  • Beschreibung: <jats:title>ABSTRACT</jats:title> <jats:sec> <jats:title>Objectives:</jats:title> <jats:p>The present study aimed to compare the amount of incisal tooth wear in the maxillary central incisors of patients with skeletal Class III malocclusion and anterior crossbite receiving one-phase or two-phase treatment. The hypothesis was that tooth wear would differ according to treatment modalities.</jats:p> </jats:sec> <jats:sec> <jats:title>Materials and Methods:</jats:title> <jats:p>Maxillary dental casts obtained before (T1) and after (T2) orthodontic treatment were divided into three groups. Group I consisted of casts from 21 patients (7 males, 14 females; mean age 9.8 years) who received two-phase treatment (maxillary protraction followed by fixed appliance therapy). Group II comprised casts from 37 patients who underwent orthodontic camouflage treatment for crossbite, subdivided according to age. Group IIa consisted of casts from 15 adolescents (8 males, 7 females; mean age 13.5 years), and group IIb consisted of casts from 22 adults (13 males, 9 females; mean age 24.5 years). Maxillary dental casts obtained at T1 and T2 were scanned. For each pair of digital images, T2 was superimposed on T1 using the best-fit method. Tooth wear was quantified and compared among groups.</jats:p> </jats:sec> <jats:sec> <jats:title>Results:</jats:title> <jats:p>Significantly less tooth wear was observed in group I compared to groups IIa and IIb, but no difference was found between groups IIa and IIb. Spearman correlation analysis revealed no significant correlation between tooth wear and age, treatment duration, or craniofacial morphology.</jats:p> </jats:sec> <jats:sec> <jats:title>Conclusions:</jats:title> <jats:p>Despite the long duration of early treatment, it caused less wear of the maxillary central incisors than did orthodontic camouflage treatment.</jats:p> </jats:sec>
  • Zugangsstatus: Freier Zugang