Geometric Influence of the Sagittal and Vertical Apical Base Relationship on the ANB Angle

Sadat-Khonsari, Reza; Dathe, Henning; Knösel, Michael; Hahn, Wolfram; Kubein-Meesenburg, Dietmar; Bauß, Oskar

doi:10.1007/s00056-009-8809-5

Cited by 9 publications

(8 citation statements)

References 65 publications

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“…The ANB° and the Wits appraisal are the key parameters for the diagnosis of skeletal Class III malocclusion (20,21). However, the use of ANB° has been questioned since it is sensitive to the position of the anterior cranial base and may vary according to the divergence of the jaws (22,23). This is also the case with Wits appraisal, which can be affected by the cant of occlusal plane and by its variations due to tooth eruption (21).…”

Section: Discussionmentioning

confidence: 99%

Comparison of short-term effects between face mask and skeletal anchorage therapy with intermaxillary elastics in patients with maxillary retrognathia

Aglarci

Esenlik²,

Fındık

2015

EORTHO

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Section: Discussionmentioning

confidence: 99%

Comparison of short-term effects between face mask and skeletal anchorage therapy with intermaxillary elastics in patients with maxillary retrognathia

Aglarci

Esenlik²,

Fındık

2015

EORTHO

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“…The outcomes agreed with a previous study which used the absolute value to assess the sagittal base relationship. 30 The ANB angle could be calculated by subtracting the SNB angle from the SNA angle 32 or by subtracting the SNA angle from the SNB angle. 28 Similarly, the A-B/NF appraisal could be measured from the projection of A-point to that of B-point, and vice versa.…”

Section: Discussionmentioning

confidence: 99%

“…The absolute value of the ANB angle has been applied to denote severity of APBBD. 30 When generating absolute values, the two indicators containing negative values (the ANB angle and the A-B/NF appraisal) were adjusted according to the following methods in order to preserve deviation distances from the mean of the general population. The means of the ANB angle and the A-B/ NF appraisal in the general population are 3.7u and 6.1 mm, respectively.…”

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confidence: 99%

Assessing anteroposterior basal bone discrepancy with the Dental Aesthetic Index

Huang

Takahashi

Yamazaki

et al. 2012

The Angle Orthodontist

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Objective: To investigate dental appearance and cephalometric features, using a sample of orthognathic and/or orthodontic patients. A special interest was to identify the relationship of the Dental Aesthetic Index (DAI) with anteroposterior basal bone discrepancy (APBBD) and cephalometric indicators. Materials and Methods: A full sample of 159 patients in two Japanese hospitals was used. Each patient was assessed with a preorthodontic dental cast and cephalometric radiography. Results: Malocclusion with APBBD was more prevalent among high DAI subjects (P 5 .034, OR 5 1.04, 95% CI: 1.00-1.08), Class III malocclusion patients (P 5 .048, OR 5 2.32, 95% CI: 1.01-5.34) and male patients (P 5 .008, OR 5 2.96, 95% CI: 1.33-6.61). Participants scoring 88 points (the highest score in this sample) of the DAI had 16.84 times the risk of APBBD of those who scored 17 points (the lowest score in this sample). Patients with APBBD presented with a greater adjusted ANB angle (t 5 28.10, P , .001) and a larger adjusted A-B/NF appraisal (t 5 29.65, P , .001). The SNA angle (P , .001), the SNB angle (P 5 .002), the adjusted ANB angle (P 5 .001), and the adjusted A-B/NF appraisal (P 5 .035) were associated with DAI scores in cubic regression models. Conclusion:This study has demonstrated a relationship between the DAI and APBBD. Feasibility of using the adjusted ANB angle and the adjusted A-B/NF appraisal to assess severity of APBBD has been confirmed. The DAI may provide a supportive method to evaluate orthognathic needs. Future investigations are indicated. (Angle Orthod. 2013;83:527-532.)

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“…In addition, in our sample a few Class III molar relations were included and this may have contributed to the low agreement between Class III molar relation and Wits classification. ANB angle is also strongly influenced by geometric factors, and the absolute value of ANB increases with the length of the vertical distance between the points A and B [22]. This may have contributed to the larger percentages of cases diagnosed with Class I and II malocclusion in the sample compared to Wits that classified more patients as Class III.…”

Section: Discussionmentioning

confidence: 98%

ANB, Wits And Molar Relationship, Do They Correlate In Orthodontic Patients?

2014

Dentistry

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Objective:To determine the association between the anteroposterior relationship of the dental arch and the jawbase in a random sample of orthodontic patients. Materials and Methods: 478 pretreatment lateral cephalometric radiographs and study models were evaluated. Cephalometric analysis using Dolphin software to measure the ANB angle and Wits appraisal was performed, and Angle's classification was evaluated. Results:The agreement of the sagittal classification of the dental arch was higher with the anteroposterior relationship of the jaw-base using ANB angle (57.7%) than with Wits appraisal (43.7%). Agreement of molar relation and both ANB and Wits was higher in Class I cases (79.5% and 84% respectively). The correlation coefficient value between ANB and Wits was 0.727. A statistical significant regression between ANB and Wits was found. Conclusions:It is evident that the Angle classification of occlusion will not reveal the full picture of the dentofacial deformity, and the three methods of anteroposterior classification agree in only one out of every three individuals.

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Geometric Influence of the Sagittal and Vertical Apical Base Relationship on the ANB Angle

Abstract: The ANB angle is strongly influenced by geometric factors. Accurate diagnosis of the sagittal base relationship should thus take the individual character of the ANB angle into account.

Cited by 9 publications

References 65 publications

Comparison of short-term effects between face mask and skeletal anchorage therapy with intermaxillary elastics in patients with maxillary retrognathia

Comparison of short-term effects between face mask and skeletal anchorage therapy with intermaxillary elastics in patients with maxillary retrognathia

Assessing anteroposterior basal bone discrepancy with the Dental Aesthetic Index

ANB, Wits And Molar Relationship, Do They Correlate In Orthodontic Patients?

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