Three-dimensional assessment of the ideal insertion angle and position of temporary anchorage devices in the anterior palate: (in a sample of erbil city).
DOI:
https://doi.org/10.15218/edj.2022.23Keywords:
Anterior palate, CBCT, TADs, Mini-screwAbstract
Background and Objectives: Mini-screws may be used in a variety of alveolar bone sites
and can withstand loading, allowing for better orthodontic anchoring. The position and
placement of mini-screws are determined by the quality and quantity of bone. This study
aims to anatomically assess the anterior palate as the insertion site for the orthodontic
bone screw.
Method: A retrospective study was done by collecting three-dimensional data of the anterior palate for 40 patients with an age range of (20-30 years). The setting of the study was a
private Maxillofacial Radiology Center in Erbil City. Measurements at 32 reference points
and angulations were done with the help of a Radiologist to determine the ideal insertion
point and angulation for TADs in the anterior palate.
Results: The thickness of the anterior palate was found to differ significantly (p=0.00)
among the 32 points studied, including 20 points at a zero angle to a vector perpendicular
to the curve of the palate and three additional angles at 10, 20, and 30 degrees to a vector
perpendicular to the curve of the palate. The thickest point in the anterior palate was 6mm
away from the midline at the contact point between canine and first premolar on both the
left and right sides. The reference point with the least thickness was determined to be
3mm to 6mm distant from the midline at the intersection with the center of the second
premolar on the right and left.
Conclusion: In conclusion, the thickness of the palatal hard tissue decreased from the anterior to the posterior.
References
Chang H-P, Tseng Y-C. Miniscrew implant applications in contemporary orthodontics. The
Kaohsiung journal of medical sciences. 2014; 30
(3):111-5.
Al Amri MS, Sabban HM, Alsaggaf DH, Alsulaimani FF, Al-Turki GA, Al-Zahrani MS, et al. Anatomical consideration for optimal position of orthodontic miniscrews in the maxilla: a CBCT appraisal. Annals of Saudi Medicine. 2020; 40
(4):330-7.
Zawawi KH. Acceptance of orthodontic miniscrews as temporary anchorage devices. Patient
preference and adherence. 2014 Jun 30;8:933-7.
Abbassy MA, Bakry AS, Zawawi KH, Hassan AH.
Long-term durability of orthodontic miniimplants. Odontology. 2018; 106(2):208-14.
Baumgaertel S, Jones CL, Unal M. Miniscrew biomechanics: Guidelines for the use of rigid indirect anchorage mechanics. Am J Orthod Dentofacial Orthop.2017 Sep; 152(3):413-419.
Abbassy MA, Sabban HM, Hassan AH, Zawawi
KH. Evaluation of mini-implant sites in the posterior maxilla using traditional radiographs and
cone-beam computed tomography. Saudi Med
J.2015 Nov; 36(11):1336-41.
Wang Y, Qiu Y, Liu H, He J, Fan X. Quantitative
evaluation of palatal bone thickness for the
placement of orthodontic miniscrews in adults
with different facial types. Saudi Med J. 2017
Oct; 38(10): 1051–1057.
Chang C-J, Lin W-C, Chen M-Y, Chang H-C. Evaluation of total bone and cortical bone thickness
of the palate for temporary anchorage device
insertion. Journal of Dental Sciences. 2021; 16
(2):636-42.
Graber LW, Vanarsdall RL, Vig KW, Huang GJ.
Orthodontics-e-book: current principles and
techniques: Elsevier Health Sciences; 2016.
Wehrbein H, Merz B, Diedrich P, Glatzmaier J.
The use of palatal implants for orthodontic anchorage. Design and clinical application of the
orthosystem. Clinical oral implants research.
; 7(4):410-6.
Hourfar J, Kanavakis G, Bister D, Schätzle M,
Awad L, Nienkemper M, et al. Three dimensional
anatomical exploration of the anterior hard palate at the level of the third ruga for the placement of mini-implants–a cone-beam CT study. European journal of orthodontics. 2015; 37 (6):589-95.
Wang M, Sun Y, Yu Y, Ding X. Evaluation of palatal bone thickness for insertion of orthodontic
mini-implants in adults and adolescents. Journal
of Craniofacial Surgery. 2017; 28(6):1468-71.
Ludwig B, Glasl B, Bowman SJ, Wilmes B,
Kinzinger GS, Lisson JA. Anatomical guidelines for
miniscrew insertion: palatal sites. Journal of clinical orthodontics: JCO. 2011; 45(8):433-67.
Ichinohe M, Motoyoshi M, Inaba M, Uchida Y,
Kaneko M, Matsuike R, et al. Risk factors for failure of orthodontic mini-screws placed in the
median palate. Journal of oral science. 2019; 61
(1):13-8.
Migliorati M, Benedicenti S, Signori A, Drago S,
Barberis F, Tournier H, et al. Miniscrew design
and bone characteristics: an experimental study
of primary stability. American Journal of Orthodontics and Dentofacial Orthopedics. 2012; 142
(2):228-34.
Akhoon AB, Mushtaq M. Quantitative evaluation
of palatal bone thickness for safe mini-implant
placement using CBCT. International Journal of
Applied Dental Sciences. 2017; 3(4):472-7.
Iodice G, Nand R, Drago S, Repett L, Tonoli G,
Silvestrini Biavat A, et al. Accuracy of direct insertion of TADs in the anterior palate with respect to a 3D assisted digital insertion virtual
planning. Orthod Craniofac Res.2022 May; 25
(2):192-198.
Misch C. Contemporary implant dentistry, ed2. St
Louis. 1999.
Winsauer H, Vlachojannis C, Bumann A, Vlachojannis J, Chrubasik S. Paramedian vertical
palatal bone height for mini-implant insertion: a
systematic review. European journal of orthodontics. 2014; 36(5):541-9.
Wehrbein H, Merz BR, Diedrich P. Palatal bone
support for orthodontic implant anchorage-a
clinical and radiological study. The European
Journal of Orthodontics. 1999; 21(1):65-70.
Scarfe WC, Farman AG. What is cone-beam CT
and how does it work? Dental Clinics of North
America. 2008; 52(4):707-30.
Lyu X, Guo J, Chen L, Gao Y, Liu L, Pu L, et al. Assessment of available sites for palatal orthodontic mini-implants through cone-beam computed
tomography. The Angle Orthodontist. 2020; 90
(4):516-23.
Becker K, Unland J, Wilmes B, Tarraf NE, Drescher
D. Is there an ideal insertion angle and position
for orthodontic mini-implants in the anterior
palate? A CBCT study in humans. American Journal of Orthodontics and Dentofacial Orthopedics.
; 156(3):345-54.
Gahleitner A, Podesser B, Schick S, Watzek G,
Imhof H. Dental CT and orthodontic implants:
imaging technique and assessment of available
bone volume in the hard palate. European journal of radiology. 2004; 51(3):257-62.
Kawa D, Kunkel M, Heuser L, Jung BA. What is the
best position for palatal implants? A CBCT study
on bone volume in the growing maxilla. Clinical
oral investigations. 2017; 21(2):541-9.
GC S. Larsen’s human embryology. SB Bleyl, PR
Brauer, and PH Francis-West, ediors Human embryology, 5th ed Philadelphia: Churchill Livingstone. 2015.
Downloads
Published
How to Cite
Issue
Section
License
Copyright (c) 2023 Melav Musa Ibrahim, Omar Fawzi Chawshli (Author)
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The copyright on any article published in Erbil Dental Journal is retained by the author(s) in agreement with the Creative Commons Attribution Non-Commercial ShareAlike License (CC BY-NC-SA 4.0).
