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Fig. 2 | BMC Oral Health

Fig. 2

From: Maxillofacial growth changes after maxillary protraction therapy in children with class III malocclusion: a dual control group retrospective study

Fig. 2

Angular measurements used in this study (2) 1. Gonial angle (Ar-Go’-Me angle); 2. Y axis angle (SGn-FH angle); 3. Angle of inclination of palatal plane related to anterior cranial base plane (PP-SN angle); 4. Angle of inclination of palatal plane related to Frankfort plane (PP-FH angle); 5. Pogonion position related to anterior cranial base (SNP angle); 6. Facial angle (NP-FH angle); 7. Occlusal plane to mandibular plane angle (OP-MP angle); 8. Occlusal plane to palatal plane angle (OP-PP angle). Note O.D.I.=AB-MP angle + PP-FH angle which is not shown in the figure

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BMC Oral Health

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