Spatial and angular alterations in the dental arch after premature loss of primary molars: Immediate and 9-month computed tomography evaluation.
Humans
Dental Arch
/ diagnostic imaging
Molar
/ diagnostic imaging
Child
Tooth, Deciduous
/ diagnostic imaging
Female
Male
Longitudinal Studies
Tomography, X-Ray Computed
/ methods
Imaging, Three-Dimensional
/ methods
Tooth Extraction
Mandible
/ diagnostic imaging
Dentition, Mixed
Maxilla
/ diagnostic imaging
Journal
Journal of the Indian Society of Pedodontics and Preventive Dentistry
ISSN: 1998-3905
Titre abrégé: J Indian Soc Pedod Prev Dent
Pays: India
ID NLM: 8710631
Informations de publication
Date de publication:
01 Jul 2024
01 Jul 2024
Historique:
received:
02
03
2024
accepted:
07
06
2024
medline:
9
9
2024
pubmed:
9
9
2024
entrez:
9
9
2024
Statut:
ppublish
Résumé
Contemporary imaging methods and quickly advancing technologies have increased the number of diagnostic tools available in medicine and orthodontics. The current study aimed to determine three-dimensional (3D) space changes that occurred after the extraction of either the maxillary or mandibular primary molars during the mixed dentition period. The present study was a longitudinal split-mouth study with a study group and a control group. The sample consisted of 20 children aged between 6 and 9 years. Clinical examination, radiological analysis, and 3D digital images of the plaster casts were used sequentially to gather all the data. The dental cast measurements recorded were arch width, arch length, hemi-perimeter, dental space at the extraction site, and angulation of the first permanent molar. The children were recalled for follow-up after 9 months, and all dental cast measurements were repeated using nondestructive 3D computed tomography software. For repeated measurements, the test applied was a paired t-test, and for independent samples, the test was a Student's t-test. A significant decrease in arch width (P = 0.001), arch length (P < 0.001), hemi-perimeter (P < 0.001), D-space (P < 0.001), and E-space (P = 0.001) was observed following extraction. A significant increase in angulation measurements was observed (P = 0.001). The study revealed a comparative reduction in mandibular arch width, a reduction in arch length in both the maxilla and the mandible, a reduced hemi-perimeter of dental arches, loss of dental extraction space, and a change in angulation of the erupted first permanent molars following premature loss of the primary molar.
Sections du résumé
BACKGROUND
BACKGROUND
Contemporary imaging methods and quickly advancing technologies have increased the number of diagnostic tools available in medicine and orthodontics. The current study aimed to determine three-dimensional (3D) space changes that occurred after the extraction of either the maxillary or mandibular primary molars during the mixed dentition period.
MATERIALS AND METHODS
METHODS
The present study was a longitudinal split-mouth study with a study group and a control group. The sample consisted of 20 children aged between 6 and 9 years. Clinical examination, radiological analysis, and 3D digital images of the plaster casts were used sequentially to gather all the data. The dental cast measurements recorded were arch width, arch length, hemi-perimeter, dental space at the extraction site, and angulation of the first permanent molar. The children were recalled for follow-up after 9 months, and all dental cast measurements were repeated using nondestructive 3D computed tomography software. For repeated measurements, the test applied was a paired t-test, and for independent samples, the test was a Student's t-test.
RESULTS
RESULTS
A significant decrease in arch width (P = 0.001), arch length (P < 0.001), hemi-perimeter (P < 0.001), D-space (P < 0.001), and E-space (P = 0.001) was observed following extraction. A significant increase in angulation measurements was observed (P = 0.001).
CONCLUSION
CONCLUSIONS
The study revealed a comparative reduction in mandibular arch width, a reduction in arch length in both the maxilla and the mandible, a reduced hemi-perimeter of dental arches, loss of dental extraction space, and a change in angulation of the erupted first permanent molars following premature loss of the primary molar.
Identifiants
pubmed: 39250207
doi: 10.4103/jisppd.jisppd_86_24
pii: 00005097-202407000-00010
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
226-234Informations de copyright
Copyright © 2024 Copyright: © 2024 Journal of Indian Society of Pedodontics and Preventive Dentistry.
Références
Zhao J, Jin H, Li X, Qin X. Dental arch spatial changes after premature loss of first primary molars:A systematic review and meta-analysis of split-mouth studies. BMC Oral Health 2023;23:430
Kardach H, Szponar-Żurowska A, Biedziak B. A comparison of teeth measurements on plaster and digital models. J Clin Med 2023;12:943
Lin YT, Lin WH, Lin YT. Twelve-month space changes after premature loss of a primary maxillary first molar. Int J Paediatr Dent 2011;21:161–6
Spodzieja K, Olczak-Kowalczyk D. Premature loss of deciduous teeth as a symptom of systemic disease:A narrative literature review. Int J Environ Res Public Health 2022;19:3386
British Dental Association. Advice Sheet B1:Ethics in Dentistry London British Dental Association 2009
Costalos PA, Sarraf K, Cangialosi TJ, Efstratiadis S. Evaluation of the accuracy of digital model analysis for the American Board of Orthodontics objective grading system for dental casts. Am J Orthod Dentofacial Orthop 2005;128:624–9
Whetten JL, Williamson PC, Heo G, Varnhagen C, Major PW. Variations in orthodontic treatment planning decisions of class II patients between virtual 3-dimensional models and traditional plaster study models. Am J Orthod Dentofacial Orthop 2006;130:485–91
Jedliński M, Mazur M, Grocholewicz K, Janiszewska-Olszowska J. 3D scanners in orthodontics-current knowledge and future perspectives-a systematic review. Int J Environ Res Public Health 2021;18:1121
Rangel FA, Maal TJ, Bronkhorst EM, Breuning KH, Schols JG, Bergé SJ, et al. Accuracy and reliability of a novel method for fusion of digital dental casts and cone beam computed tomography scans. PLoS One 2013;8:e59130
Das D, Menon I, Gupta R, Arora V, Ashraf A, Ahsan I. Oral health literacy:A practical strategy towards better oral health status among adult population of Ghaziabad district. J Family Med Prim Care 2020;9:764–70
Nandini VV, Venkatesh KV, Nair KC. Alginate impressions:A practical perspective. J Conserv Dent 2008;11:37–41
Macena MC, Tornisiello Katz CR, Heimer MV, de Oliveira e Silva JF, Costa LB. Space changes after premature loss of deciduous molars among Brazilian children. Am J Orthod Dentofacial Orthop 2011;140:771–8
Lin YT, Lin WH, Lin YT. Immediate and six-month space changes after premature loss of a primary maxillary first molar. J Am Dent Assoc 2007;138:362–8
Ovsenik M. Assessment of malocclusion in the permanent dentition:Reliability of intraoral measurements. Eur J Orthod 2007;29:654–9
Cernei ER, Maxim DC, Zetu IN. The influence of premature loss of temporary upper molars on permanent molars. Rev Med Chir Soc Med Nat Iasi 2015;119:236–42
Ngan DC, Kharbanda OP, Geenty JP, Darendeliler MA. Comparison of radiation levels from computed tomography and conventional dental radiographs. Aust Orthod J 2003;19:67–75
Northway WM. The not-so-harmless maxillary primary first molar extraction. J Am Dent Assoc 2000;131:1711–20
Padma Kumari B, Retnakumari N. Loss of space and changes in the dental arch after premature loss of the lower primary molar:A longitudinal study. J Indian Soc Pedod Prev Dent 2006;24:90–6
Johnsen DC. Space observation following the loss of the mandibular first primary molars in mixed dentition. J Dent Child 1980;47:24–7
Alnahwi HH, Donly KJ, Contreras CI. Space loss following premature loss of primary second molars. Gen Dent 2015;63:e1–4
Kamegawa M, Nakamura M, Tsutsumi S. 3D morphological measurements of dental casts with occlusal relationship using microfocus X-ray CT. Dent Mater J 2008;27:549–54
Guideline on Management of the Developing Dentition and Occlusion in Pediatric Dentistry. Pediatr Dent 2016;38:289–301
Kaihara Y, Katayama A, Iwamae S, Kihara T, Ono K, Kurose M, et al. Application of three-dimensional digital models for the morphometric analysis of predentition plasters:Accuracy and precision. Eur J Paediatr Dent 2014;15:360–6
de Waard O, Rangel FA, Fudalej PS, Bronkhorst EM, Kuijpers-Jagtman AM, Breuning KH. Reproducibility and accuracy of linear measurements on dental models derived from cone-beam computed tomography compared with digital dental casts. Am J Orthod Dentofacial Orthop 2014;146:328–36
Grünheid T, Patel N, De Felippe NL, Wey A, Gaillard PR, Larson BE. Accuracy, reproducibility, and time efficiency of dental measurements using different technologies. Am J Orthod Dentofacial Orthop 2014;145:157–64
Al-Khatib AR, Rajion ZA, Masudi SM, Hassan R, Townsend GC. Validity and reliability of tooth size and dental arch measurements:A stereo photogrammetric study. Aust Orthod J 2012;28:22–9
Hazeveld A, Huddleston Slater JJ, Ren Y. Accuracy and reproducibility of dental replica models reconstructed by different rapid prototyping techniques. Am J Orthod Dentofacial Orthop 2014;145:108–15
Watanabe-Kanno GA, Abrão J, Miasiro Junior H, Sánchez-Ayala A, Lagravère MO. Reproducibility, reliability and validity of measurements obtained from cecile3 digital models. Braz Oral Res 2009;23:288–95