RELATIONSHIP BETWEEN OCCLUSAL PLANE ORIENTATION AND SAGITTAL MALOCCLUSIONS: STUDY OF AN ORTHODONTIC POPULATION

##article.authors##

  • INES DALLEL Department of Dento-Facial Orthopedics, University of Monastir, Faculty of Dental Medicine, Monastir Dental Clinic, Laboratory of Oral Health and Orofacial Rehabilitation, LR12ES11, 5000 Monastir, Tunisia.
  • SANA KANOUN Faculty of Dental Medicine, University of Monastir, 5000 Monastir, Tunisia.
  • MARIEM NAHDI Doctor –private practice.
  • MONCEF OMMEZINE Faculty of Dental Medicine, University of Monastir, Laboratory of Oral Health and Orofacial Rehabilitation, LR12ES11, 5000 Monastir, Tunisia.
  • SAMIR TOBJI Department of Dento-Facial Orthopedics, University of Monastir, Faculty of Dental Medicine, Monastir Dental Clinic, Laboratory of Oral Health and Orofacial Rehabilitation, LR12ES11, 5000 Monastir, Tunisia.
  • ADEL BEN AMOR Department of Dento-Facial Orthopedics, University of Monastir, Faculty of Dental Medicine, Monastir Dental Clinic, Laboratory of Oral Health and Orofacial Rehabilitation, LR12ES11, 5000 Monastir, Tunisia.

##semicolon##

Orthodontics##common.commaListSeparator## occlusion##common.commaListSeparator## occlusal plane##common.commaListSeparator## malocclusion##common.commaListSeparator## Angle classification

##article.abstract##

Objective: The aim of this study was to evaluate the association of the skeletal pattern and angle class with the occlusal plane (OP). This study also examined the effect of orthodontic treatment on this plane.

Methods: Lateral cephalometric radiographs of a sample of 135 patients were collected. The angles between the Frankfort horizontal, palatal plane (PP), mandibular plane (MP), and the OP were analyzed and compared between several groups and subsequently before and after treatment.

Results: The statistical comparison between 3 skeletal frame groups demonstrates that the cant of the OP showed a major difference. This difference was greater in class III subjects. Examination revealed that the OP was not meaningfully affected within the Angle classification. Statistically, a significant correlation was found between OP steepness and the vertical skeletal pattern. A significant rise of OP/sella-nasion (SN) for class I (p=0.019) and II (p=0.015) after orthodontic treatment. In addition, patients treated with elastics showed a significant decrease of OP/MP (mandibular plane) in Angle class III and considerable increase of OP/SN and OP/PP in Angle class II. Observations of the group treated with bimaxillary extractions showed that OP/SN (sella nasion line) and OP/PP differ in a meaningful way.

Conclusion: This study confirms the association between the skeletal pattern and the OP inclination in adults. Concerning the Angle classification, there was no significant difference between the groups. Orthodontic therapy had an influence on the inclination of this plane for the different malocclusions. Premolars extraction in class I cases significantly modified the OP. For class II and III malocclusions, the OP inclination was mainly altered by the use of intermaxillary traction elastics.

##submission.citations##

Fushima K, Kitamura Y, Mita H, Sato S, Suzuki Y, Kim YH. Significance of the cant of the posterior occlusal plane in class II division 1 malocclusions. Eur J Orthod 1996;18:27-40.

Tanaka EM, Sato S. Longitudinal alteration of the occlusal plane and development of different dentoskeletal frames during growth. Am J Orthod Dentofacial Orthop 2008;134:602.

Tovstein BC. Behavior of the occlusal plane and related structures in the treatment of Class II malocclusion. Angle Orthod 1955;25:189-98.

Čelar A, Tafaj E, Graf A, Lettner S. Association of anterior and posterior occlusal planes with different Angle and skeletal classes in permanent dentitions: A lateral cephalometric radiograph study. J Orofac Orthop 2018;79:267-76.

Raymond JL. Justification occlusale du traitement précoce de la classe III. Orthod Fr 2006;77:207-12.

Tropkova B, Major P, Prasad N, Nebbe B. Cephalometric landmarks identification and reproducibility: A meta analysis. Am J Orthod Dentofacial Orthop 1997;112:165-70.

Shen YF, Hung CH. Evaluation of occlusal plane, ala-tragion line, palatal plane and mandibular plane in Chinese. Changgeng Yi Xue Za Zhi 1988;11:218-23.

Pyakurel U, Thapaliya KB, Singh K, Gupta A, Gupta S, Bajracharya M, et al. Assessment of palatal plane and occlusal plane for determining anteroposterior jaw relation. INMA J Nepal Med Assoc 2019;57:3-7.

Braun S, Legan HL. Changes in occlusion related to the cant of the occlusal plane. Am J Orthod Dentofacial Orthop 1997;111:184-8.

Keeling SD, Riolo ML, Martin RE, Ten Have TR. A multivariate approach to analyzing the relation between occlusion and craniofacial morphology. Am J Orthod Dentofacial Orthop 1989;95:297-305.

Schudy FF. Cant of the occlusal plane and axial inclinations of teeth. Angle Orthod 1963;33:69-82.

Deblock L, Weissenbach O. Relations céphalométriques du plan d’occlusion. Rev Orthop Dentfacial 1997;31:393-402.

Kuntz M, Turlot JC, Hildwein M. The occlusal plane in Class I and Class II malocclusion: Its relation to craniofacial variables. Orthod Fr 1988;59:383-93.

Oktay. H. A comparison of ANB, WITS, AF-BF, and APDI measurements. Am J Orthod Dentofacial Orthop 1991;99:122-8.

Jacobson A. The “Wits” appraisal of jaw disharmony. Am J Orthod 1975;67:125-38.

Fourquet L, Göttle M, Bounoure G. Finishing and detailing, stability and harmony. Orthod Fr 2014;85:93-125.

Yamaguchi K, Nanda RS. The effects of extraction and nonextraction treatment on the mandibular position. Am J Orthod Dentofacial Orthop 1991;100:443-52.

Stallard H. The prevention of therapeutic premaxillary abstraction. Dent Cosmos 1993;75:213-33.

Ellen EK, Schneider BJ, Sellke T. A comparative study of anchorage in bioprogressive versus standard Edgewise treatment in Class II correction with intermaxillary elastic force. Am J Orthod Dentofacial Orthop 1998;114:430-6.

Nelson B, Hansen K, Hägg U. Overjet reduction and molar correction in fixed appliance treatment of class II, division 1, malocclusions: Sagittal and vertical compenents. Am J Orthod Dentofacial Orthop 1999;115:13-23.

Janson G, Sathler R, Fernandes TM, Branco NC, de Freitas MR. Correction of Class II malocclusion with Class II elastics: A systematic review. Am J Orthod Dentofacial Orthop 2013;143:383-92.

Epstein WN. Analysis of Changes in molar relationships by means of extra-oral anchorage (Head-Cap) in treatment of malocclusion. Angle Orthod 1948;18:63-9.

Singh VP, Pokharel PR, Pariekh K, Roy DK, Singla A, Biswas KP. Elastics in orthodontics: A review. Health Renaiss 2012;10:49-56.

Reyes BC, Baccetti T, McNamara JA. An estimate of craniofacial growth in Class III malocclusion. Angle Orthod 2006;76:577-84.

Câmara CA, Martins RP. Functional aesthetic occlusal plane (FAOP). Dent Press J Orthod 2016;21:114-25.

Uzuner FD, Aslan BI, Dinçer M. Dentoskeletal morphology in adults with Class I, Class II Division 1, or Class II Division 2 malocclusion with increased overbite. Am J Orthod Dentofacial Orthop 2019;156:248-56.

Olivi P, Cheynet F, Chossegros C, Blanc JL. Orientation du plan d’occlusion et récidive postopératoire des béances antérieures. Rev Stomatol Chir Maxillofac 2009;110:269-72.

Dougherty HL. The effect of mechanical forces upon the mandibular buccal segments during orthodontic treatment. Am J Orthod 1968;54:83-103.

Baek SH, Ahn HW, Yang SD, Choi JY. Establishing the customized occlusal plane in systemized surgical treatment objectives of class III. J Craniofac Surg 2011;22:1708-13.

Antonarakis GS, Kiliaridis S, Scolozzi P. Orientation of the occlusal plane in a Class I adult population. Oral Surg Oral Med Oral Pathol Oral Radiol 2013;116:35-40.

Doğan S, Ertürk N. Delaire’s architectural and structural cranio-facial analysis in cephalometric evaluation. Turk Ortodonti Derg 1989;2: 103-13.

##submissions.published##

01-05-2021

##issue.issue##

Vol 9 Issue 3 2021 (May-June)

##section.section##

Original Article(s)