TY - JOUR
T1 - Does molar distalization by the Beneslider have skeletal and dental impacts? A prospective 3D analysis
AU - Longerich, Ulrich J.J.
AU - Thurau, Matthias
AU - Grill, Florian
AU - Stimmer, Herbert
AU - Gahl, Christina M.
AU - Kolk, Andreas
N1 - Publisher Copyright:
© 2021 Elsevier Inc.
PY - 2022/7
Y1 - 2022/7
N2 - Objective: The study aimed to clarify (1) the effect of the Beneslider distalization appliance on maxillary molars (M1+2), (2) the type of tooth movement, and (3) changes in skeletal parameters. Study Design: Dental distalization paths and transversal changes were measured according to the distance of the pterygoid vertical as well as on the virtualized 3D plaster model. Results: Distalization of the second premolar (P2; T1 − T2) was 2.51 mm (±1.81 mm; P < .001) combined with a distal tipping of 6.50° (±5.09°; P < .001), whereas for M1 a distalization of 3.49 mm (±1.10 mm) occurred with negligible tipping (0.73° ± 5.04°). No significant differences (T1 − T2) on sagittal and vertical skeletal variables were found within or between G1+2. In contrast, a significant increase in N-Sp′ in G2 and in Sp′-Gn in G1+2 with consecutive Hasund index reduction was shown. Comparing T1 and T2, the device had an effect on the transversal development. Conclusion: The Beneslider distalization appliance causes an effective distalization of M1+2, with slight second premolar tipping. No modification of skeletal parameters was recorded, but a relevant effect on Hasund index and the transverse was found.
AB - Objective: The study aimed to clarify (1) the effect of the Beneslider distalization appliance on maxillary molars (M1+2), (2) the type of tooth movement, and (3) changes in skeletal parameters. Study Design: Dental distalization paths and transversal changes were measured according to the distance of the pterygoid vertical as well as on the virtualized 3D plaster model. Results: Distalization of the second premolar (P2; T1 − T2) was 2.51 mm (±1.81 mm; P < .001) combined with a distal tipping of 6.50° (±5.09°; P < .001), whereas for M1 a distalization of 3.49 mm (±1.10 mm) occurred with negligible tipping (0.73° ± 5.04°). No significant differences (T1 − T2) on sagittal and vertical skeletal variables were found within or between G1+2. In contrast, a significant increase in N-Sp′ in G2 and in Sp′-Gn in G1+2 with consecutive Hasund index reduction was shown. Comparing T1 and T2, the device had an effect on the transversal development. Conclusion: The Beneslider distalization appliance causes an effective distalization of M1+2, with slight second premolar tipping. No modification of skeletal parameters was recorded, but a relevant effect on Hasund index and the transverse was found.
UR - http://www.scopus.com/inward/record.url?scp=85124471324&partnerID=8YFLogxK
U2 - 10.1016/j.oooo.2021.12.002
DO - 10.1016/j.oooo.2021.12.002
M3 - Article
C2 - 35165062
AN - SCOPUS:85124471324
SN - 2212-4403
VL - 134
SP - 36
EP - 48
JO - Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
JF - Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
IS - 1
ER -