Authors :
Dr. Phalguni Warate; Dr. Sunikumar Pulluri; Dr. Akash Lavate; Dr. Sneha Hoshing; Dr. Sneha Shinde; Dr. Madhura Wagh
Volume/Issue :
Volume 9 - 2024, Issue 6 - June
Google Scholar :
https://tinyurl.com/mur8y7pv
Scribd :
https://tinyurl.com/zn3e37ns
DOI :
https://doi.org/10.38124/ijisrt/IJISRT24JUN299
Note : A published paper may take 4-5 working days from the publication date to appear in PlumX Metrics, Semantic Scholar, and ResearchGate.
Abstract :
Torsion in an "archwire" that forms a pair when it
interacts with a "bracket slot" produces torque. The
archwire moves the tooth through the torsional tension
created in the activated state, depending on the degree of
torsion, the size and quality of the wire, and the
deformability of the bracket. The dimensions of the
bracket hole may unintentionally vary when brackets are
made. Therefore, the purpose of this study was to evaluate
the accuracy of built-in torque from various
manufacturers.
Objective:-
To measure and analyse the built-in torque of the
maxillary right canine brackets, maxillary right lateral
canines, and maxillary right central incisors from
commercially available bracket systems (JJ Orthodontics,
American Orthodontics, Koden Orthodontics, Desires -
Ozone series). The brackets will be measured in 0.022
inches.
Material and Method:-
The sample was made up of three brackets from each
company (maxillary central incisor, lateral incisor, and
canine), the torque of which was measured in a dimension
of 0.022 inches. Using a stereomicroscope, images were
captured, measurements were made following operator
calibration with IMAGE PROPLUS, and a digital
readout was generated.
Results:-
In practically every bracket, the built-in torque
mean values were lower. The built-in torque levels were
most similar to the American Orthodontics standard
values.
Keywords :
Orthodontic Brackets, Torque, Stereomicroscope, MBT Prescription
References :
- Wagner JA, Nikolai RJ. Stiffness of incisor segments of edgewise arches in torsion and bending. Angle Orthod. 1985;55:37–50.
- Harzer W, Bourauel C, Gmyrek H. Torque capacity of metal and polycarbonate brackets with and without a metal slot. Eur J Orthod. 2004;26:435–441.
- Pandis N, Strigou S, Eliades T. Maxillary incisor torque with conventional and self-ligating brackets: a prospective clinical trial. Orthod Craniofac Res. 2004.
- 4.Streva AM, Cotrim-Ferreira FA, Garib DG, Carvalho PEG. Are torque values of preadjusted brackets precise? J Appl Oral Sci. 2011;19(4):313-317.
- O’Higgins EA, Kirschen RH, Lee RT. The influence of maxillary incisor inclination on arch length. Br J Orthod. 1999;26(2):97-102.
- Cash AC, Good SA, Curtis R V, McDonald F. An evaluation of slot size in orthodontic brackets—Are standards as expected? Angle Orthod. 2004;74(4):450-453.
- Gioka C, Eliades T. Materials-induced variation in the torque expression of preadjusted appliances. Am J Orthod Dentofac Orthop. 2004;125(3):323-328.
- Zinelis S, Annousaki O, Eliades T, Makaou M, Zinelis S, Annousaki O, Eliades T, Makou M. Elemental composition of brazing alloys in metallic orthodontic brackets. Angle Orthod. 2004;74(3):394-399.
- Aditya. G. et al. Slot .022” MBT bracket torque accuracy (Evaluation of scanning electron microscopy- Research Article). Cited – 2013.
- Kapur. et al. Comparision of load transmission & bracket deformation between titanium & stainless steel brackets. Am J Orthod Dentofac Orthop1999; 116:275-8.
- Siatkowski RE. Loss of anterior torque control due to variations in bracket slot and archwire dimensions. J Clin Orthod. 1999;33(9):508-510.
Torsion in an "archwire" that forms a pair when it
interacts with a "bracket slot" produces torque. The
archwire moves the tooth through the torsional tension
created in the activated state, depending on the degree of
torsion, the size and quality of the wire, and the
deformability of the bracket. The dimensions of the
bracket hole may unintentionally vary when brackets are
made. Therefore, the purpose of this study was to evaluate
the accuracy of built-in torque from various
manufacturers.
Objective:-
To measure and analyse the built-in torque of the
maxillary right canine brackets, maxillary right lateral
canines, and maxillary right central incisors from
commercially available bracket systems (JJ Orthodontics,
American Orthodontics, Koden Orthodontics, Desires -
Ozone series). The brackets will be measured in 0.022
inches.
Material and Method:-
The sample was made up of three brackets from each
company (maxillary central incisor, lateral incisor, and
canine), the torque of which was measured in a dimension
of 0.022 inches. Using a stereomicroscope, images were
captured, measurements were made following operator
calibration with IMAGE PROPLUS, and a digital
readout was generated.
Results:-
In practically every bracket, the built-in torque
mean values were lower. The built-in torque levels were
most similar to the American Orthodontics standard
values.
Keywords :
Orthodontic Brackets, Torque, Stereomicroscope, MBT Prescription