Assessment of curve of spee in different malocclusions

Abstract

DOI: 10.26650/eor.2018.475

Purpose

The aim of this study was to compare the depth of curve of Spee (COS) in Angle Class I, Angle Class II and Angle Class III malocclusions.

Materials and methods

The Samples were chosen among the diagnostic materials in İstanbul Medipol University Department of Orthodontics. Ninety plaster models were chosen, and were divided into 3 groups (n=30) according to Angle dental malocclusion classification. The depth of curve of Spee was measured on left and right sides of mandibular dental models and mean values were used as depth of curve of Spee. ANOVA test was used to evaluate normally distributed data. Comparison of the sides were performed by using paired sample t test. Significance level was set to p<0.05.

Results

The depth of COS was found as deepest in Class II malocclusion (2.9±0.8 mm) and was relative flat in Class III malocclusion (2.1±0.9 mm) and the difference was statistically significant (p<0.05). No significant difference was found between Angle Class I and Class III malocclusions.

Conclusion

Since the depth of curve of Spee is increased in Class II malocclusions, this factor should be considered in treatment planning.

Keywords

• Curve of spee; malocclusion; angle classification; mandible; orthodontics

References

1. 1. Farella M, Michelotti A, van Eijden TM, Martina R. The curve of Spee and craniofacial morphology: A multiple regression analysis. Eur J Oral Sci 2002; 110: 277-81. 2. Sal Carcara C, Preston B, Jureyda O. The relationship between the curve of spee, relapse, and the alexander discipline. Semin Orthod 2001; 7: 90-9. 3. Spee FG, Beidenbach MA, Hotz M, Hitchcock HP. The gliding path of the mandible along the skull. Ferdinand graf spee (1855-1937), prosector at the Anatomy Institute of Kiel. J Am Dent Assoc 1980; 100: 670-5. 4. Braun S, Hnat WP, Johnson BE. The curve of spee revisited. Am J Orthod Dentofacial Orthop 1996; 110: 206-10. 5. De Praeter J, Dermaut L, Martens G, Kuijpers-Jagtman AM. Long-term stability of the leveling of the curve of spee. Am J Orthod Dentofacial Orthop 2002; 121: 266-72. 6. Xu H, Suzuki T, Muronoi M, Ooya K. An evaluation of the curve of spee in the maxilla and mandible of human permanent healthy dentitions. J Prosthet Dent 2004; 92: 536-9. 7. Marshall SD, Caspersen M, Hardinger RR, Franciscus RG, Aquilino SA, Southard TE. Development of the curve of spee. Am J Orthod Dentofacial Orthop 2008; 134: 344-52. 8. Osborn JW. Relationship between the mandibular condyle and the occlusal plane during hominid evolution: Some of its effects on jaw mechanics. Am J Phys Anthropol 1987; 73: 193-207. 9. Osborn JW. Orientation of the masseter muscle and the curve of spee in relation to crushing forces on the molar teeth of primates. Am J Phys Anthropol 1993; 92: 99-106. 10. Burstone CR. Deep overbite correction by intrusion. Am J Orthod 1977; 72: 1-22. 11. Andrews LF. The six keys to normal occlusion. Am J Orthod 1972; 62: 296-309. 12. Houston WJ. The analysis of errors in orthodontic measurements. Am J Orthod 1983; 83: 382-90. 13. Otto RL, Anholm JM, Engel GA. A comparative analysis of intrusion of incisor teeth achieved in adults and children according to facial type. Am J Orthod 1980; 77: 437-46. 14. Schudy FF. The control of vertical overbite in clinical orthodontics. Angle Orthod 1968; 38: 19-39. 15. Ahmed I, Nazir R, Gul e E, Ahsan T. Influence of malocclusion on the depth of curve of spee. J Pak Med Assoc 2011; 61: 1056-9. 16. Baragar FA, Osborn JW. Efficiency as a predictor of human jaw design in the sagittal plane. J Biomech 1987; 20: 447-57. 17. Kuroda T, Motohashi N, Tominaga R, Iwata K. Three-dimensional dental cast analyzing system using laser scanning. Am J Orthod Dentofacial Orthop 1996; 110: 365-9. 18. Sohmura T, Kojima T, Wakabayashi K, Takahashi J. Use of an ultrahigh-speed laser scanner for constructing three-dimensional shapes of dentition and occlusion. J Prosthet Dent 2000; 84: 345-52. 19. Bishara SE, Jakobsen JR, Treder JE, Stasi MJ. Changes in the maxillary and mandibular tooth size-arch length relationship from early adolescence to early adulthood. A longitudinal study. Am J Orthod Dentofacial Orthop 1989; 95: 46-59. 20. Carter GA, McNamara JA, Jr. Longitudinal dental arch changes in adults. Am J Orthod Dentofacial Orthop 1998; 114: 88-99. 21. Sondhi A, Cleall JF, BeGole EA. Dimensional changes in the dental arches of orthodontically treated cases. Am J Orthod 1980; 77: 60-74. 22. Veli I, Ozturk MA, Uysal T. Curve of spee and its relationship to vertical eruption of teeth among different malocclusion groups. Am J Orthod Dentofacial Orthop 2015; 147: 305-12. 23. Shannon KR, Nanda RS. Changes in the curve of spee with treatment and at 2 years posttreatment. Am J Orthod Dentofacial Orthop 2004; 125: 589-96. 24. Baydas B, Yavuz I, Atasaral N, Ceylan I, Dagsuyu IM. Investigation of the changes in the positions of upper and lower incisors, overjet, overbite, and irregularity index in subjects with different depths of curve of spee. Angle Orthod 2004; 74: 349-55.