TY - JOUR
T1 - Three-segment versus 2-segment surgically assisted rapid maxillary expansion
AU - Pereira, Pedro Andre A.
AU - Canellas, João Vitor
AU - Souza, Ramiro Beato
AU - Tiwana, Paul S.
AU - Medeiros, Paulo Jose
AU - Ritto, Fabio G.
N1 - Funding Information:
Supported by the Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro (FAPERJ) and Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES).
Funding Information:
Supported by the Funda??o Carlos Chagas Filho de Amparo ? Pesquisa do Estado do Rio de Janeiro (FAPERJ) and Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES).
Publisher Copyright:
© 2021 Elsevier Inc.
PY - 2022/3
Y1 - 2022/3
N2 - Objective: To compare the 2 surgically assisted rapid maxillary expansion (SARME) techniques, the conventional 2-segment osteotomy between maxillary central incisors and the 3-segment osteotomy between maxillary lateral incisors and canines bilaterally. Authors hypothesized that the 3-piece would provide better bone expansion. Study Design: A pilot study was conducted; 19 patients were divided into 2 groups: conventional 2-segment osteotomy (10 patients) and 3-segment osteotomy (9 patients). Dental and skeletal measurements of the preoperative and postoperative cone beam computed tomography images were analyzed. Pre- and postoperative periodontal probing was performed, patients’ cosmetic perception was evaluated in a colored visual analog scale (VAS), and surgical time was measured with a regular chronometer. Results: Three-segment SARME resulted in greater bone expansion (5.12 vs 6.20 mm; P = .016), less molar inclination (7.16 vs 3.57 degrees; P = .028), better patient cosmetic perception (3.13 vs 7.68 in a VAS; P = .000), and longer surgical time (43 vs 52 minutes; P = .026). Furthermore, the 2-segment group presented necrosis of 1 central incisor. Conclusions: Results suggest that 3-piece SARME is more effective for bone expansion of the maxilla.
AB - Objective: To compare the 2 surgically assisted rapid maxillary expansion (SARME) techniques, the conventional 2-segment osteotomy between maxillary central incisors and the 3-segment osteotomy between maxillary lateral incisors and canines bilaterally. Authors hypothesized that the 3-piece would provide better bone expansion. Study Design: A pilot study was conducted; 19 patients were divided into 2 groups: conventional 2-segment osteotomy (10 patients) and 3-segment osteotomy (9 patients). Dental and skeletal measurements of the preoperative and postoperative cone beam computed tomography images were analyzed. Pre- and postoperative periodontal probing was performed, patients’ cosmetic perception was evaluated in a colored visual analog scale (VAS), and surgical time was measured with a regular chronometer. Results: Three-segment SARME resulted in greater bone expansion (5.12 vs 6.20 mm; P = .016), less molar inclination (7.16 vs 3.57 degrees; P = .028), better patient cosmetic perception (3.13 vs 7.68 in a VAS; P = .000), and longer surgical time (43 vs 52 minutes; P = .026). Furthermore, the 2-segment group presented necrosis of 1 central incisor. Conclusions: Results suggest that 3-piece SARME is more effective for bone expansion of the maxilla.
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U2 - 10.1016/j.oooo.2021.06.002
DO - 10.1016/j.oooo.2021.06.002
M3 - Article
C2 - 34518140
AN - SCOPUS:85114745660
SN - 2212-4403
VL - 133
SP - 264
EP - 270
JO - Oral Surgery Oral Medicine and Oral Pathology
JF - Oral Surgery Oral Medicine and Oral Pathology
IS - 3
ER -