Treatment efficiency and stability of skeletal Class III malocclusion with a surgery-first approach

Y. K. Lian, A. M.C. Hsieh, M. S. Tsai, H. R. Jiang, Ching-Yu Yen, Y. J. Hsia, Sheng-Yang Lee

Research output: Contribution to journalArticle

Abstract

Objectives: To compare treatment duration in skeletal Class III malocclusion patients managed with a 2-step treatment (surgery-first approach, SFA) and conventional 3-step treatment, and to compare stability of surgical outcomes between segmentation and non-segmentation in the 2-step treatment group. Setting and Sample Population: The sample population consisted of 37 patients who completed orthognathic surgery (OGS) and orthodontic correction at the Charm Aesthetic Surgery Clinic (Taipei, Taiwan) between 2012 and 2015. Of these, 26 received 2-step treatment and 11 received 3-step treatment. Materials and Methods: To compare treatment efficiency and stability, three time points were analysed: T 0, before treatment (before OGS in the 2-step group and before orthodontic treatment in the 3-step group); T 1, after OGS but before orthodontic correction (cone beam computed tomography (CBCT) was obtained within 2 weeks of OGS); and T 2, after orthodontic correction (CBCT was obtained on the day of bracket removal). The post-OGS (T 1) CBCT items were individually superimposed on the pre-treatment (T 0) CBCT items to determine the distance of B point migration. Results: A significant difference was found in treatment times between 2-step treatment and conventional 3-step treatment. In addition, no significant difference was found when comparing B-X (mm) and B-Y (mm) at T 2-T 1 for the segmentation and non-segmentation groups. Conclusions: Using SFA for skeletal Class III malocclusions saves approximately 6 months of treatment time over 3-step treatment; the stability of the segmentation group was comparable to that of the non-segmentation group, a result that is possibly associated with the fixation of 2 miniplates.

Original languageEnglish
Pages (from-to)90-95
Number of pages6
JournalOrthodontics and Craniofacial Research
Volume21
Issue number2
DOIs
Publication statusPublished - May 1 2018

Fingerprint

Malocclusion
Orthognathic Surgery
Cone-Beam Computed Tomography
Orthodontics
Therapeutics
Plastic Surgery
Taiwan
Population

Keywords

  • 2-jaw surgery
  • Cone beam computed tomography (CBCT)
  • Segmental osteotomy
  • Surgery-first approach (SFA)

ASJC Scopus subject areas

  • Orthodontics
  • Surgery
  • Oral Surgery
  • Otorhinolaryngology

Cite this

Treatment efficiency and stability of skeletal Class III malocclusion with a surgery-first approach. / Lian, Y. K.; Hsieh, A. M.C.; Tsai, M. S.; Jiang, H. R.; Yen, Ching-Yu; Hsia, Y. J.; Lee, Sheng-Yang.

In: Orthodontics and Craniofacial Research, Vol. 21, No. 2, 01.05.2018, p. 90-95.

Research output: Contribution to journalArticle

Lian, Y. K. ; Hsieh, A. M.C. ; Tsai, M. S. ; Jiang, H. R. ; Yen, Ching-Yu ; Hsia, Y. J. ; Lee, Sheng-Yang. / Treatment efficiency and stability of skeletal Class III malocclusion with a surgery-first approach. In: Orthodontics and Craniofacial Research. 2018 ; Vol. 21, No. 2. pp. 90-95.
@article{a1a560d0f813455cabf8f9a354900c0b,
title = "Treatment efficiency and stability of skeletal Class III malocclusion with a surgery-first approach",
abstract = "Objectives: To compare treatment duration in skeletal Class III malocclusion patients managed with a 2-step treatment (surgery-first approach, SFA) and conventional 3-step treatment, and to compare stability of surgical outcomes between segmentation and non-segmentation in the 2-step treatment group. Setting and Sample Population: The sample population consisted of 37 patients who completed orthognathic surgery (OGS) and orthodontic correction at the Charm Aesthetic Surgery Clinic (Taipei, Taiwan) between 2012 and 2015. Of these, 26 received 2-step treatment and 11 received 3-step treatment. Materials and Methods: To compare treatment efficiency and stability, three time points were analysed: T 0, before treatment (before OGS in the 2-step group and before orthodontic treatment in the 3-step group); T 1, after OGS but before orthodontic correction (cone beam computed tomography (CBCT) was obtained within 2 weeks of OGS); and T 2, after orthodontic correction (CBCT was obtained on the day of bracket removal). The post-OGS (T 1) CBCT items were individually superimposed on the pre-treatment (T 0) CBCT items to determine the distance of B point migration. Results: A significant difference was found in treatment times between 2-step treatment and conventional 3-step treatment. In addition, no significant difference was found when comparing B-X (mm) and B-Y (mm) at T 2-T 1 for the segmentation and non-segmentation groups. Conclusions: Using SFA for skeletal Class III malocclusions saves approximately 6 months of treatment time over 3-step treatment; the stability of the segmentation group was comparable to that of the non-segmentation group, a result that is possibly associated with the fixation of 2 miniplates.",
keywords = "2-jaw surgery, Cone beam computed tomography (CBCT), Segmental osteotomy, Surgery-first approach (SFA)",
author = "Lian, {Y. K.} and Hsieh, {A. M.C.} and Tsai, {M. S.} and Jiang, {H. R.} and Ching-Yu Yen and Hsia, {Y. J.} and Sheng-Yang Lee",
year = "2018",
month = "5",
day = "1",
doi = "10.1111/ocr.12221",
language = "English",
volume = "21",
pages = "90--95",
journal = "Orthodontics and Craniofacial Research",
issn = "1601-6335",
publisher = "Wiley-Blackwell",
number = "2",

}

TY - JOUR

T1 - Treatment efficiency and stability of skeletal Class III malocclusion with a surgery-first approach

AU - Lian, Y. K.

AU - Hsieh, A. M.C.

AU - Tsai, M. S.

AU - Jiang, H. R.

AU - Yen, Ching-Yu

AU - Hsia, Y. J.

AU - Lee, Sheng-Yang

PY - 2018/5/1

Y1 - 2018/5/1

N2 - Objectives: To compare treatment duration in skeletal Class III malocclusion patients managed with a 2-step treatment (surgery-first approach, SFA) and conventional 3-step treatment, and to compare stability of surgical outcomes between segmentation and non-segmentation in the 2-step treatment group. Setting and Sample Population: The sample population consisted of 37 patients who completed orthognathic surgery (OGS) and orthodontic correction at the Charm Aesthetic Surgery Clinic (Taipei, Taiwan) between 2012 and 2015. Of these, 26 received 2-step treatment and 11 received 3-step treatment. Materials and Methods: To compare treatment efficiency and stability, three time points were analysed: T 0, before treatment (before OGS in the 2-step group and before orthodontic treatment in the 3-step group); T 1, after OGS but before orthodontic correction (cone beam computed tomography (CBCT) was obtained within 2 weeks of OGS); and T 2, after orthodontic correction (CBCT was obtained on the day of bracket removal). The post-OGS (T 1) CBCT items were individually superimposed on the pre-treatment (T 0) CBCT items to determine the distance of B point migration. Results: A significant difference was found in treatment times between 2-step treatment and conventional 3-step treatment. In addition, no significant difference was found when comparing B-X (mm) and B-Y (mm) at T 2-T 1 for the segmentation and non-segmentation groups. Conclusions: Using SFA for skeletal Class III malocclusions saves approximately 6 months of treatment time over 3-step treatment; the stability of the segmentation group was comparable to that of the non-segmentation group, a result that is possibly associated with the fixation of 2 miniplates.

AB - Objectives: To compare treatment duration in skeletal Class III malocclusion patients managed with a 2-step treatment (surgery-first approach, SFA) and conventional 3-step treatment, and to compare stability of surgical outcomes between segmentation and non-segmentation in the 2-step treatment group. Setting and Sample Population: The sample population consisted of 37 patients who completed orthognathic surgery (OGS) and orthodontic correction at the Charm Aesthetic Surgery Clinic (Taipei, Taiwan) between 2012 and 2015. Of these, 26 received 2-step treatment and 11 received 3-step treatment. Materials and Methods: To compare treatment efficiency and stability, three time points were analysed: T 0, before treatment (before OGS in the 2-step group and before orthodontic treatment in the 3-step group); T 1, after OGS but before orthodontic correction (cone beam computed tomography (CBCT) was obtained within 2 weeks of OGS); and T 2, after orthodontic correction (CBCT was obtained on the day of bracket removal). The post-OGS (T 1) CBCT items were individually superimposed on the pre-treatment (T 0) CBCT items to determine the distance of B point migration. Results: A significant difference was found in treatment times between 2-step treatment and conventional 3-step treatment. In addition, no significant difference was found when comparing B-X (mm) and B-Y (mm) at T 2-T 1 for the segmentation and non-segmentation groups. Conclusions: Using SFA for skeletal Class III malocclusions saves approximately 6 months of treatment time over 3-step treatment; the stability of the segmentation group was comparable to that of the non-segmentation group, a result that is possibly associated with the fixation of 2 miniplates.

KW - 2-jaw surgery

KW - Cone beam computed tomography (CBCT)

KW - Segmental osteotomy

KW - Surgery-first approach (SFA)

UR - http://www.scopus.com/inward/record.url?scp=85042597498&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85042597498&partnerID=8YFLogxK

U2 - 10.1111/ocr.12221

DO - 10.1111/ocr.12221

M3 - Article

AN - SCOPUS:85042597498

VL - 21

SP - 90

EP - 95

JO - Orthodontics and Craniofacial Research

JF - Orthodontics and Craniofacial Research

SN - 1601-6335

IS - 2

ER -