Anatomical assessment by cone beam computed tomography with the use of lateral cephalograms to analyse the vertical bone height of the anterior palate for orthodontic mini-implants.
anterior palate
cone beam computed tomography
lateral cephalogram
orthodontic mini-implant
vertical bone height
Journal
Orthodontics & craniofacial research
ISSN: 1601-6343
Titre abrégé: Orthod Craniofac Res
Pays: England
ID NLM: 101144387
Informations de publication
Date de publication:
Feb 2021
Feb 2021
Historique:
received:
14
03
2020
revised:
21
06
2020
accepted:
23
06
2020
pubmed:
2
7
2020
medline:
20
1
2021
entrez:
2
7
2020
Statut:
ppublish
Résumé
Lateral cephalograms (LC) should be usable to evaluate the vertical bone height of the anterior maxilla for planning the placement of orthodontic mini-implants (OMI). The purpose of this study is to determine the usability of LC for examining the real vertical dimension of the anterior palate. Lateral cephalograms and corresponding cone beam computed tomography (CBCT) scans were employed for examining 30 fresh cadaver heads. The minimum (distance A) and maximum (distance B) vertical palatal bone heights on LCs at the level of first premolars were measured, whereas the corresponding measurements were taken via CBCTs on the median, and 2-, 4- and 6-mm paramedian planes. Additionally, the overall minimum vertical palatal height on CBCT was recorded. Distance A and B on LC were about 8.3 ± 2.5 mm and 9.9 ± 2.5 mm, respectively. The median palatal height on CBCT was significantly higher than both measurements on LC (P < .01). Furthermore, the bone supply on the paramedian planes was similar or higher on CBCT compared to Distance A and similar or less compared to Distance B. The strongest correlation at the level of the premolars was found in the comparison of the maximum vertical palatal height via LC with the vertical palatal height on the median plane via CBCT (r = .84, 95% CI: 0.69-0.92, P < .001). In order to make the best possible use of the vertical bone supply of the anterior palate and to avoid injuries to the nasal floor, Distance A should be taken into account for planning paramedian OMI placements and distance B for median OMI insertion.
Substances chimiques
Dental Implants
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
78-86Informations de copyright
© 2020 The Authors. Orthodontics & Craniofacial Research published by John Wiley & Sons Ltd.
Références
Möhlhenrich SC, Heussen N, Winterhalder P, et al. Predicting primary stability of orthodontic mini-implants, according to position, screw-size, and bone quality, in the maxilla of aged patients: a cadaveric study. Eur J Oral Sci. 2019;127(5):462-471.
Kravitz ND, Kusnoto B. Risks and complications of orthodontic miniscrews. Am J Orthod Dentofacial Orthop. 2007;131(4 Suppl):S43-S51.
Gracco A, Lombardo L, Cozzani M, Siciliani G. Quantitative evaluation with CBCT of palatal bone thickness in growing patients. Prog Orthod. 2006;7(2):164-174.
Bernhart T, Vollgruber A, Gahleitner A, Dortbudak O, Haas R. Alternative to the median region of the palate for placement of an orthodontic implant. Clin Oral Implants Res. 2000;11(6):595-601.
Kang S, Lee SJ, Ahn SJ, Heo MS, Kim TW. Bone thickness of the palate for orthodontic mini-implant anchorage in adults. Am J Orthod Dentofacial Orthop. 2007;131(4 Suppl):S74-S81.
King KS, Lam EW, Faulkner MG, Heo G, Major PW. Vertical bone volume in the paramedian palate of adolescents: a computed tomography study. Am J Orthod Dentofacial Orthop. 2007;132(6):783-788.
Ludwig B, Glasl B, Bowman SJ, Wilmes B, Kinzinger GS, Lisson JA. Anatomical guidelines for miniscrew insertion: palatal sites. J Clin Orthod. 2011;45(8):433-441. quiz 467.
Hourfar J, Kanavakis G, Bister D, 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. Eur J Orthod. 2015;37(6):589-595.
Poon YC, Chang HP, Tseng YC, et al. Palatal bone thickness and associated factors in adult miniscrew placements: a cone-beam computed tomography study. Kaohsiung J Med Sci. 2015;31(5):265-270.
Baumgaertel S. Quantitative investigation of palatal bone depth and cortical bone thickness for mini-implant placement in adults. Am J Orthod Dentofacial Orthop. 2009;136(1):104-108.
Chhatwani S, Rose-Zierau V, Haddad B, Almuzian M, Kirschneck C, Danesh G. Three-dimensional quantitative assessment of palatal bone height for insertion of orthodontic implants - a retrospective CBCT study. Head Face Med. 2019;15(1):9.
Wilmes B, Ludwig B, Vasudavan S, Nienkemper M, Drescher D. The T-zone: median vs. paramedian insertion of palatal mini-implants. J Clin Orthod. 2016;50(9):543-551.
Jung BA, Wehrbein H, Heuser L, Kunkel M. Vertical palatal bone dimensions on lateral cephalometry and cone-beam computed tomography: implications for palatal implant placement. Clin Oral Implants Res. 2011;22(6):664-668.
Maino BG, Paoletto E, Lombardo L 3rd, Siciliani G. A Three-dimensional digital insertion guide for palatal miniscrew placement. J Clin Orthod. 2016;50(1):12-22.
Möhlhenrich SC, Brandt M, Kniha K, et al. Accuracy of orthodontic mini-implants placed at the anterior palate by tooth-borne or gingiva-borne guide support: a cadaveric study. Clin Oral Investig. 2019;23(12):4425-4431.
Tosun T, Keles A, Erverdi N. Method for the placement of palatal implants. Int J Oral Maxillofac Implants. 2002;17(1):95-100.
Kakali L, Alharbi M, Pandis N, Gkantidis N, Kloukos D. Success of palatal implants or mini-screws placed median or paramedian for the reinforcement of anchorage during orthodontic treatment: a systematic review. Eur J Orthod. 2019;41(1):9-20.
Nienkemper M, Pauls A, Ludwig B, Drescher D. Stability of paramedian inserted palatal mini-implants at the initial healing period: a controlled clinical study. Clin Oral Implants Res. 2015;26(8):870-875.
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. Am J Orthod Dentofacial Orthop. 2019;156(3):345-354.
Kim YJ, Lim SH, Gang SN. Comparison of cephalometric measurements and cone-beam computed tomography-based measurements of palatal bone thickness. Am J Orthod Dentofacial Orthop. 2014;145(2):165-172.