International Journal of Clinical Pediatric Dentistry

Register      Login

VOLUME 12 , ISSUE 5 ( September-October, 2019 ) > List of Articles

Original Article

Relationship between the Position of the Incisors and the Thickness of the Soft Tissues in the Upper Jaw: Cephalometric Evaluation

Federico Losi, Marco G Baldoni

Keywords : Cephalometric values, Facial profile, Incisors position, Soft tissues thickness

Citation Information : Losi F, Baldoni MG. Relationship between the Position of the Incisors and the Thickness of the Soft Tissues in the Upper Jaw: Cephalometric Evaluation. Int J Clin Pediatr Dent 2019; 12 (5):391-397.

DOI: 10.5005/jp-journals-10005-1667

License: CC BY-NC 4.0

Published Online: 00-10-2019

Copyright Statement:  Copyright © 2019; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim: The aim of this study is to verify if the thickness of soft tissues and inclination of the incisors have some relation with profile, to analyze its relevance considering these two parameters separately and to screen how the combination of different inclinations and different thickness can generate different facial patterns. Materials and methods: The study was performed on 47 Caucasian patients aged between 6 years and 16 years of divided into 24 males and 23 females. None of the patients presented craniofacial changes of syndromic nature. All patients presented a value of SNA in between 80° and 84°. The inclination of the upper incisor related to the bispinal plane was between 104° and 116°. Each radiograph has been digitized or analyzed directly in digital format. To analyze the relationships between soft tissues and position of the incisors using various cephalometric measures and statistical methodology were used. Results: Analysing the general correlation between all the cephalometric parameters considered, the results found show that the thickness of the tissues had an effect in modifying the aesthetic profile with respect to the position of the incisors. The cephalometric parameters related to the esthetic profile of the maxilla are all linked by strong correlations, especially correlation between SU, ULA and LS were very high. The differences between the means were statistically significant for different groups. Using the values of Mx1 and thickness of the lip as independent variables, while the LS, SU, ULA and NLA values as dependent variables all results are significant with respect to the prediction p < 0.05. Conclusion: Thickness of the soft tissues showed a significant influence on the profile with respect to the position of the incisors. Clinical significance: Data obtained highlighted that thickness of the soft tissues must be taken into account before starting an orthodontic treatment in order to obtain best aesthetic results.


  1. Maddalone M, Ferrari M, et al. Use of miniscrew implants in orthodontic distal movement [Utilizzo delle miniviti nelle meccaniche ortodontiche di distalizzazione]. Dental Cadmos 2010;78(8):97–105.
  2. Maddalone M, Ferrari M, et al. Intrusive mechanics in orthodontics with the use of TAD's [Utilizzo delle miniviti nelle meccaniche ortodontiche di distalizzazione]. Dental Cadmos 2010;78(7):97–106.
  3. Maddalone M. The association between the psychological status and the severity of facial deformity in orthognathic patients. Angle Orthodontist 2012;82(3):396–402. DOI: 10.2319/060211-363.1.
  4. Citterio F, Pellegatta A, et al. Analysis of the apical constriction using micro-computed tomography and anatomical sections. Giornale Italiano Di Endodonzia 2014;28:41–45. DOI: 10.1016/j.gien.2014.05.001.
  5. Venino PM, Citterio CL, et al. A Micro–computed Tomography Evaluation of the Shaping Ability of Two Nickel-titanium Instruments, HyFlex EDM and ProTaper Next. J Endod 2017;43(4):628–632. DOI: 10.1016/j.joen.2016.11.022.
  6. Maddalone M, Gagliani M, et al. Prevalence of vertical root fractures in teeth planned for apical surgery. A retrospective cohort study. Int Endod J 2018 Feb 25;51(9):969–974. DOI: 10.1111/iej.12910.
  7. Maddalone M, Mirabelli L, et al. Long-term stability of autologous bone graft of intraoral origin after lateral sinus floor elevation with simultaneous implant placement. Clin Implant Dent Relat Res 2018 Aug 24;20(5):713–721. DOI: 10.1111/cid.12649.
  8. Porcaro G, Busa A, et al. Use of a partial-thickness flap for Guided Bone regeneration in the upper jaw. J Contemp Dent Pract 2017 Dec 1;18(12):1117–1121. DOI: 10.5005/jp-journals-10024-2186.
  9. Jacobson A, Jacobson RL. Radiographic Cephalometry: From Basics to 3-D Imaging. s.l.: Quintessence Publishing Co, Inc; 2006.
  10. Little RM, Riedel RA, et al. An evaluation of changes in mandibular anterior alignment from 10 to 20 years postretention. Am J Orthod Dentofacial Orthop 1988 May;93(5):423–428. DOI: 10.1016/0889-5406(88)90102-3.
  11. Subtelny JD. The Soft Tissue Profile, Growth And Treatment Changes. The Angle Orthodontist 1961;31:105–122.
  12. Burstone CJ. Lip posture and its significance in treatment planning. Am J Orthod 1967;53:262–284. DOI: 10.1016/0002-9416(67)90022-X.
  13. Bronson JR, Stoner CC. Optimal sagittal appliance mechanics. Funct Orthod 1984 Jul–Aug;1(2):43–44.
  14. Bloom DR, Padayachy JN. Esthetic changes with four anterior units. Br Dent J 2006 Feb 11;200(3):135–138. DOI: 10.1038/sj.bdj.4813192.
  15. Dénarié S, Gebeile-Chauty S, et al. Esthetic repercussions of the class II treatment on the profile: comparative study Distal Activ Concept (DAC)/Extra-Oral Force (EOF). Orthod Fr 2010 Sep;81(3):209–220. DOI: 10.1051/orthodfr/2010019.
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.