Assessment of antero-posterior skeletal relationships in adult Korean patients in the natural head position and centric relation
1
조회
0
다운로드
0
인용
0
참고문헌
키워드
초록
Objective: This study aimed to verify the intra-individual reproducibility of the natural head position (NHP) in adult Korean patients in the centric relation (CR) position and to prove the inter-individual variability of the Frankfurt horizontal (FH) plane and sella-nasion (SN) line compared to the true horizontal line (THL). In addition, the study aimed to investigate the correlations between linear measurements from A-point and B-point to the nasion true vertical line (NTVL) and angular measurements from A-point and B-point to the SN line. Methods: Two lateral cephalograms were taken of 116 subjects (23 males, 93 females) with CR wax bites in a NHP at a one-week interval. Results: Method errors of three variables and intraclass correlation coefficients of six parameters proved the intra-individual reproducibility of NHP (p < 0.001). The angle of the FH to the THL was not significantly different from 0o (p > 0.05), but it was clinically variable (SD 3.89o) on the inter-individual level. Conversely, the angle of the SN line to the THL was significantly different from 7o (p < 0.05). Very low correlation was found between the linear measurements and angular measurements of A-point and B-point (p < 0.01). Conclusions: The NTVL could be a useful reference line for assessing the antero-posterior position of the maxilla and mandibleof Korean adult patients in NHP and CR. (Korean J Orthod 2010;40(6):421-431)
Abstract
Objective: This study aimed to verify the intra-individual reproducibility of the natural head position (NHP) in adult Korean patients in the centric relation (CR) position and to prove the inter-individual variability of the Frankfurt horizontal (FH) plane and sella-nasion (SN) line compared to the true horizontal line (THL). In addition, the study aimed to investigate the correlations between linear measurements from A-point and B-point to the nasion true vertical line (NTVL) and angular measurements from A-point and B-point to the SN line. Methods: Two lateral cephalograms were taken of 116 subjects (23 males, 93 females) with CR wax bites in a NHP at a one-week interval. Results: Method errors of three variables and intraclass correlation coefficients of six parameters proved the intra-individual reproducibility of NHP (p < 0.001). The angle of the FH to the THL was not significantly different from 0o (p > 0.05), but it was clinically variable (SD 3.89o) on the inter-individual level. Conversely, the angle of the SN line to the THL was significantly different from 7o (p < 0.05). Very low correlation was found between the linear measurements and angular measurements of A-point and B-point (p < 0.01). Conclusions: The NTVL could be a useful reference line for assessing the antero-posterior position of the maxilla and mandibleof Korean adult patients in NHP and CR. (Korean J Orthod 2010;40(6):421-431)
참고문헌 (48)
- Broadbent BH, "A new X-ray technique and its application to orthodontia", Angle Orthod, 1, pp.45~66 (1931)
- Hofrath H, "Die Bedeutung der Röntgenfern – und Abstandsaufnahme für die Diagnostik der kieferanomalien", Fortschritte der kieferorthopädie, 1, pp.232~58 (1931)
- Downs WB, "Variations in facial relationships; their significance in treatment and prognosis", Am J Orthod, 812, pp.812~40 (1948)
- Steiner CC, "Cephalometrics for you and me", Am J Orthod, 39, pp.729~55 (1953)
- Riedel RA, "Relation of maxillary structures to cranium in malocclusion and in normal occlusion", Angle Orthod, 22, pp.142~45 (1952)
- Tweed CH, "The Frankfort-mandibular plane angle in orthodontic diagnosis classification, treatment planning, and prognosis", Am J Orthod, 32, pp.175~230 (1946)
- Tweed CH, "The Frankfort-mandibular incisor angle (FMIA) in orthodontic diagnosis, treatment planning and prognosis", Angle Orthod, 24, pp.121~69 (1954)
- Ricketts RM, "Cephalometric synthesis: An exercise in stating objectives and planning treatment with tracings of the head roentgenogram", Am J Orthod, 46, pp.647~73 (1960)
- Jenkins DH, "Analysis of orthodontic deformity employing lateral cephalostatic radiography", Am J Orthod, 41, pp.442~52 (1955)
- Jacobson A, "The “Wits” appraisal of jaw disharmony", Am J Orthod, 67, pp.125~38 (1975)
- McNamara JA Jr, "A method of cephalometric evaluation", Am J Orthod, 86, pp.449~69 (1984)
- Taylor CM, "Changes in the relationship of nasion, point A, and point B and the effect upon ANB", Am J Orthod, 56, pp.143~63 (1969)
- Beatty EJ, "A modified technique for evaluating apical base relationships", Am J Orthod, 68, pp.303~15 (1975)
- Broca M, "Sur les projections de la tète, et sur un nouveau procède de cephalometrié", Bull de la Société D’Anthropologie de Paris, 3, pp.514~44 (1862)
- Moorrees CFA, "Natural head position: a basic consideration in the interpretation of cephalometric radiographs", Am J Phys Anthrop, 16, pp.213~34 (1958)
- Leitão P, "Nanda RS. Relationship of natural head position to craniofacial morphology", Am J Orthod Dentofacial Orthop, 117, pp.406~17 (2000)
- Peng L, "Fifteen-year reproducibility of natural head posture: A longitudinal study", Am J Orthod Dentofacial Orthop, 116, pp.82~5 (1999)
- Choi BT, "Articulator mounting. In Steps of preparation for orthognathic surgery", pp.113~32 (2004), Jee sung
- Solow B, "Tallgren A. Natural head position in standing subjects", Acta Odontol Scand, 29, pp.591~607 (1971)
- Dahlberg G, "Statistical methods for medical and biological students" (1940), Interscience Publications
- Park EJ, "Study of craniocervical posture and craniofacial morphology in Korean young adults", Korean J Orthod, 25, pp.129~42 (1995)
- Lee CM, "A study on the adaptation of the craniofacial structure to the variations of head postures", Korean J Orthod, 22, pp.169~77 (1992)
- Kim HR, "A study on the reproducibility of the natural head position according to the skeletal malocclusion types and sex", Korean J Orthod, 30, pp.307~15 (2000)
- Hanau RL, "Occlusal changes in centric relation", J Am Dent Assoc, 16, pp.1903~15 (1929)
- The glossary of prosthodontic terms, "The Academy of Prosthodontics", J Prosthet Dent, 71, pp.41~112 (1994)
- Lundeen HC, "An evaluation of mandibular border movements: their character and significance", J Prosthet Dent, 40, pp.442~52 (1978)
- Lucia VO, "A technique for recording centric relation", J Prosthet Dent, 14, pp.492~505 (1964)
- Dawson PE, "Centric relation. In Evaluation, diagnosis, and treatment of occlusal problem", pp.48~70 (1974), CV Mosby
- Strohaver RA, "A comparison of articulator mountings made with centric relation and myocentric position records", J Prosthet Dent, 28, pp.379~90 (1972)
- Long JH, "Locating centric relation with a leaf gauge", J Prosthet Dent, 29, pp.608~10 (1973)
- Dawson PE, "Optimum TMJ condyle position in clinical practice", Int J Periodontics Restorative Dent, 5, pp.10~31 (1985)
- Houston WJ, "The analysis of errors in orthodontic measurements", Am J Orthod, 83, pp.382~90 (1983)
- Huggare JA, "A natural head position technique for radiographic cephalometry", Dentomaxillofac Radiol, 22, pp.74~6 (1993)
- Cooke MS, "The reproducibility of natural head posture: a methodological study", Am J Orthod Dentofacial Orthop, 93, pp.280~8 (1988)
- Showfety KJ, "A single method for taking natural head position cephalograms", Am J Orthod, 83, pp.495~500 (1983)
- Bjerin R, "A comparison between the Frankfort Horizontal and the sella turcica-nasion line as reference planes in cephalometric analysis", Odontologica Scandinavica, 15, pp.1~12 (1957)
- Ferrario VF, "Head posture and cephalometric analyses: an integrated photographic", radiographic technique, 1994, pp.106, 257~64
- Raju NS, "A modified approach for obtaining cephalograms in the natural head position", J Orthod, 28, pp.25~8 (2001)
- Uşümez S, "Inclinometer method for recording and transferring natural head position in cephalometrics", Am J Orthod Dentofacial Orthop, 120, pp.664~70 (2001)
- Bister D, "Natural head posture-considerations of reproducibility", Eur J Orthod, 24, pp.457~70 (2002)
- Madsen DP, "Craniofacial reference plane variation and natural head position", Eur J Orthod, 30, pp.532~40 (2008)
- Marcotte MR, "Head posture and dentofacial proportions", Angle Orthod, 51, pp.208~13 (1981)
- Lundström F, "Natural head position as a basis for cephalometric analysis", Am J Orthod Dentofacial Orthod, 101, pp.244~7 (1992)
- Lundström A, "The Frankfort horizontal as a basis for cephalometric analysis", Am J Orthod Dentofacial Orthop, 107, pp.537~40 (1995)
- Cooke MS, "A summary five-factor cephalometric analysis based on natural head posture and the true horizontal", Am J Orthod Dentofacial Orthop, 93, pp.213~23 (1988)
- Viazis AD, "A cephalometric analysis based on natural head position", J Clin Orthod, 25, pp.172~81 (1991)
- 강승구, "한국인 정상교합자의 natural head position시 안모의 연조직에 대한 측모두부방사선학적 분석", 대한치과교정학회지, 33(5), pp.323~337 (2003), 대한치과교정학회
- Michiels LY, "Nasion true vertical: a proposed method for testing the clinical validity of cephalometric measurements applied to a new cephalometric reference line", Int J Adult Orthodon Orthognath Surg, 5, pp.43~52 (1990)
