A Comparison of some Features of the Indonesian Occlusion with those of two other Ethnic Groups

Johnson, Jotham; Soetamat, Anggraini; Winoto, Nini S.

doi:10.1179/bjo.5.4.183

Cited by 32 publications

(17 citation statements)

References 3 publications

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“…Class III patients with long faces are widespread in Asia [2,29]. In our research, the FMA angle was substantially correlated with lower LCF (Table 3, P < 0.001).…”

Section: Discussionsupporting

confidence: 58%

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Lip closing force of Class III patients with mandibular prognathism: a case control study

2014

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IntroductionTo compare the lip closing force of patients with mandibular prognathism to that of patients without dentofacial anomalies.MethodsThe subject group included 62 female patients of Class III relationship with mandibular prognathism. The control group been comprised of 71 patients of Class I relationships without skeletal deformities. Maximum lip closing force and average lip closing force were measured using a Y-meter. Student’s t-test was carried out to analyse the differences between the groups. Correlation and stepwise multiple linear regression analyses were performed to analyse the relationship between lip closing force and craniofacial morphology.ResultsThe lower lip closing force of subjects with mandibular prognathism was significantly greater than that of patients in the control group (P < 0.001), while the upper lip closing force showed no difference (P > 0.05). The lower lip closing force of patients with mandibular prognathism was strongly correlated with IMPA (Lower Incisor - Mandibular Plane angle, P < 0.001) and FMA (Frankfort Plane-Mandibular Plane angle, P < 0.001). Multiple regression equations: (MaxLL) = 12.192 - 0.125 * (IMPA) + 0.082 (FMA); (AveLL) = 9.112 - 0.091 * (IMPA) + 0.054 (FMA).ConclusionsThe lower lip closing force was markedly increased in Class III patients with mandibular prognathism and was strongly correlated with lower incisor position and mandibular plane angle.

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“…Class III patients with long faces are widespread in Asia [2,29]. In our research, the FMA angle was substantially correlated with lower LCF (Table 3, P < 0.001).…”

Section: Discussionsupporting

confidence: 58%

“…Kitai [1] reported that 5-20% of the Japanese population possessed the characteristics of Class III malocclusion. Similarly, Johnson [2] discovered a prevalence of 23% in Chinese children.…”

Section: Introductionmentioning

confidence: 99%

Lip closing force of Class III patients with mandibular prognathism: a case control study

2014

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“…There have been several studies investigating the prevalence of various dentofacial characteristics in different populations [1][2][3][4][5][6][7] but only a few have been conducted on an orthodontic population. [8][9][10][11][12][13] The aim of the study was to provide quantitative information regarding the pattern of dentofacial characteristics in orthodontic patients and to find the frequencies of Angle's classes and other dentofacial characteristics.…”

Section: Introductionmentioning

confidence: 99%

Pattern of Malocclusion and Treatment Need in Orthodontic Patients: An Institution-based Study

Nanjannawar¹,

Agrawal²,

Agrawal³

2012

World Journal of Dentistry

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The aim of this study was to analyze the malocclusion pattern among patients who visited Department of Orthodontics of BVU Dental College and Hospital, Sangli (Maharashtra) as a baseline data for proper treatment planning, teaching and further research. Materials and methods:This study was conducted on 125 patients who attended the orthodontic department from December 2008 to June 2010. Information regarding age, sex, type of malocclusion, dentofacial patterns and dentofacial characteristics was obtained from patients records. Orthodontic treatment need was assessed using DHC component of IOTN. Results:The results of the study showed that the patients age ranged from 10 to 33 years with mean age of 16 years 9 months (+ 3.92). There were 91 (72.8%) females and 34 (28.2%) males. Chief complaints of majority of patients were 'upper front teeth forward' and 'irregular teeth'. The commonest type of malocclusion was Angle's class II which was seen in 60 (48%) of patients. There was an increased overjet in 81% of subjects. Statistically significant association was found between skeletal and Angle's classes (p < 0.01). Assessment of need for orthodontic treatment using the DHC component of IOTN showed that 59 (47.2%) were in great need of orthodontic treatment and 53 (42.4%) had definite need of treatment. Conclusion:The results give a detailed pattern of malocclusion in orthodontic patients and may provide a baseline data for research and planning orthodontic services.

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“…1,2 One study by Smith et al 1 showed that midface fractures are frequently present in the orbit (32%), malar bone and maxilla (26%), and the nasal bones (19%). 1 Another study done by Hwang and You 3 stated the most common isolated fracture site was the nasal bone (37.7%), followed by the mandible (30%), orbital bones (7.6%), zygoma (5.7%), maxilla (1.3%), and the frontal bone (0.3%). The most common etiology was violent assault or nonviolent traumatic injury (49.4%).…”

mentioning

confidence: 97%

“…1 Mandibular prognathism is the most common reason for orthognathic treatment and orthognathic surgery in Asian countries. The socioeconomic status has developed, and the demand for not only a satisfying functional occlusion but also aesthetic needs has increased greatly over a short period.…”

mentioning

confidence: 99%

Arch Coordination Does Not Affect the Stability in Class III Orthognathic Surgery Patients

Hong¹,

Ryu²,

Lee³

et al. 2013

Journal of Craniofacial Surgery

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The purpose of this study was to evaluate if the arch coordination manifested by preorthodontics had an effect on the short-term stability after orthognathic surgery by evaluating the B point, menton, overjet, and overbite. The subjects were 10 healthy adult female and male Koreans (mean age, 24.9 years) with insufficient arch coordination and 10 healthy adult female and male Koreans (mean age, 22 years) with sufficient arch coordination. All subjects had sagittal split ramus osteotomy with 1-piece maxillary Le Fort I surgery with/without genioplasty done from the same practitioner at Kyung Hee University Hospital at Gangdong from 2009 to 2011. All arch widths of the maxilla and mandible were measured. Cephalometric tracings of the subjects were made of the presurgical and postsurgical period with a follow-up at 3 months. Relapse was measured according to cephalometric tracing changes using the V-ceph Cephalometric Analysis Software version 5.5(Osstem, Seoul, South Korea). Insufficient arch coordination did not definitively affect the overall treatment outcome. There was significant difference in the horizontal dimensions of the mandible (vertical plane to point B, overjet) in the study group. The study group showed instability in orthodontic factors, whereas skeletal factors were stable. Vertical dimensions (horizontal plane to point B, horizontal plane to menton, overbite) were not statistically significant.

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A Comparison of some Features of the Indonesian Occlusion with those of two other Ethnic Groups

Cited by 32 publications

References 3 publications

Lip closing force of Class III patients with mandibular prognathism: a case control study

Lip closing force of Class III patients with mandibular prognathism: a case control study

Pattern of Malocclusion and Treatment Need in Orthodontic Patients: An Institution-based Study

Arch Coordination Does Not Affect the Stability in Class III Orthognathic Surgery Patients

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