Differences in the mandibular premolar positions in Angle Class I subjects with different vertical facial types: A cone-beam computed tomography study
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Objective: To compare the positions of the mandibular premolars in Angle Class I subjects according to vertical facial type. The results will provide a theoretical basis for predicting effective tooth movement in orthodontic treatment. Methods: Cephalometric parameters were determined using cone-beam computed tomography in 120 Angle Class I subjects. Subjects were categorized as short, normal, and long face types according to the Frankfort mandibular angle. Parameters indicating the position of the mandibular right premolars and the mandible were also measured. Results: The angle between the mandibular first premolar axis and buccal cortex, the distance between the root apex and buccal cortex, angle of vestibularization, arc of vestibularization, and root apex maximum movable distance were significantly greater in the short face type than in the long and norm face types. The angle between the mandibular second premolar axis and buccal cortex, the distance from root apex to buccal cortex, and the arc of vestibularization were significantly greater in the short face type than in the normal face type. Conclusions: There are significant differences in the mandibular premolar positions in Class I subjects according to vertical facial type. [Korean J Orthod 2015;45(4):180-189]
Abstract
Objective: To compare the positions of the mandibular premolars in Angle Class I subjects according to vertical facial type. The results will provide a theoretical basis for predicting effective tooth movement in orthodontic treatment. Methods: Cephalometric parameters were determined using cone-beam computed tomography in 120 Angle Class I subjects. Subjects were categorized as short, normal, and long face types according to the Frankfort mandibular angle. Parameters indicating the position of the mandibular right premolars and the mandible were also measured. Results: The angle between the mandibular first premolar axis and buccal cortex, the distance between the root apex and buccal cortex, angle of vestibularization, arc of vestibularization, and root apex maximum movable distance were significantly greater in the short face type than in the long and norm face types. The angle between the mandibular second premolar axis and buccal cortex, the distance from root apex to buccal cortex, and the arc of vestibularization were significantly greater in the short face type than in the normal face type. Conclusions: There are significant differences in the mandibular premolar positions in Class I subjects according to vertical facial type. [Korean J Orthod 2015;45(4):180-189]
참고문헌 (30)
- Ingervall B, "Relation between facial morphology and activity of the masticatory muscles", J Oral Rehabil, 1, pp.131~147 (1974)
- Bassil-Nassif N, "Facial volumes and vertical facial type: a three dimensional comparative study", Orthod Fr, 81, pp.127~137 (2010)
- Tsunori M, "Relationship between facial types and tooth and bone characteristics of the mandible obtained by CT scanning", Angle Orthod, 68, pp.557~562 (1998)
- Gracco A, "Upper incisor position and bony support in untreated patients as seen on CBCT", Angle Orthod, 79, pp.692~702 (2009)
- Yamada C, "Spatial relationships between the mandibular central incisor and associated alveolar bone in adults with mandibular prognathism", Angle Orthod, 77, pp.766~772 (2007)
- Handelman CS, "The anterior alveolus: its importance in limiting orthodontic treatment and its influence on the occurrence of iatrogenic sequelae", Angle Orthod, 66, pp.95~109 (1996)
- Masumoto T, "Relationships among facial type, buccolingual molar inclination, and cortical bone thickness of the mandible", Eur J Orthod, 23, pp.15~23 (2001)
- Broadbent BH, "A new x-ray technique and its application to orthodontia", Angle Orthod, 1, pp.45~66 (1931)
- Scarfe WC, "Clinical applications of cone-beam computed tomography in dental practice", J Can Dent Assoc, 72, pp.75~80 (2006)
- NA B, "Vertical changes during orthodontic treatment for class II division 1 female", Chinese J Orthod, 13, pp.23~26 (2006)
- Timock AM, "Accuracy and reliability of buccal bone height and thickness measurements from cone-beam computed tomography imaging", Am J Orthod Dentofacial Orthop, 140, pp.734~744 (2011)
- Sherrard JF, "Accuracy and reliability of tooth and root lengths measured on cone-beam computed tomographs", Am J Orthod Dentofacial Orthop, 137(4 Suppl), pp.S100~108 (2010)
- Tarazona B, "A comparison between dental measurements taken from CBCT models and those taken from a digital method", Eur J Orthod, 35, pp.1~6 (2013)
- Ludlow JB, "Precision of cephalometric landmark identification: conebeam computed tomography vs conventional cephalometric views", Am J Orthod Dentofacial Orthop, 136, pp.312~ (2009)
- Hassan B, "Accuracy of three-dimensional measurements obtained from cone beam computed tomography surface-rendered images for cephalometric analysis: influence of patient scanning position", Eur J Orthod, 31, pp.129~134 (2009)
- Thilander B, "Bone regeneration in alveolar bone dehiscences related to orthodontic tooth movements", Eur J Orthod, 5, pp.105~114 (1983)
- Steiner GG, "Changes of the marginal periodontium as a result of labial tooth movement in monkeys", J Periodontol, 52, pp.314~320 (1981)
- Kaley J, "Factors related to root resorption in edgewise practice", Angle Orthod, 61, pp.125~132 (1991)
- Edwards JG, "A study of the anterior portion of the palate as it relates to orthodontic therapy", Am J Orthod, 69, pp.249~273 (1976)
- Sarikaya S, "Changes in alveolar bone thickness due to retraction of anterior teeth", Am J Orthod Dentofacial Orthop, 122, pp.15~26 (2002)
- Ten Hoeve A, "The effect of anteropostero incisor repositioning on the palatal cortex as studied with laminagraphy", J Clin Orthod, 10, pp.804~822 (1976)
- Andrews LF, "The six keys to normal occlusion", Am J Orthod, 62, pp.296~309 (1972)
- Linge BO, "Apical root resorption in upper anterior teeth", Eur J Orthod, 5, pp.173~183 (1983)
- Darendeliler MA, "Root resorption and its association with alterations in physical properties, mineral contents and resorption craters in human premolars following application of light and heavy controlled orthodontic forces", Orthod Craniofac Res, 7, pp.79~97 (2004)
- Yoshida N, "Experimental evaluation of initial tooth displacement, center of resistance, and center of rotation under the influence of an orthodontic force", Am J Orthod Dentofacial Orthop, 120, pp.190~197 (2001)
- Tanne K, "Patterns of initial tooth displacements associated with various root lengths and alveolar bone heights", Am J Orthod Dentofacial Orthop, 100, pp.66~71 (1991)
- Choy K, "Effect of root and bone morphology on the stress distribution in the periodontal ligament", Am J Orthod Dentofacial Orthop, 117, pp.98~105 (2000)
- Proffit WR, "Occlusal forces in normal- and long-face adults", J Dent Res, 62, pp.566~570 (1983)
- Bakke M, "Ultrasound image of human masseter muscle related to bite force, electromyography, facial morphology, and occlusal factors", Scand J Dent Res, 100, pp.164~171 (1992)
- Fulya Ozdemir, "Quantitative evaluation of alveolar cortical bone density in adults with different vertical facial types using cone-beam computed tomography", 대한치과교정학회지, 44(1), pp.36~43 (2014), 대한치과교정학회