American Journal of and D E N T O F A C I A L

ORTHODONTICS ORTHOPEDICS Volume 97 Number 4 April 1990

Founded in 1915~Seventy-five years of continuous publication

Copyright © 1990 by The C.V. Mosby Company

CASE REPORT

An American Board of Orthodontics case report S. E. Owens, Jr., DDS, MSD Jackson, Wyo. This case report describes an adult patient with a bilateral Class II malocclusion and an extremely deep overbite. The patient was treated without extraction to the standards of the American Board of Othodontics. [This case was presented to the American Board of Orthodontics in partial fulfillment of the requirements for the certification process conducted by the Board.] (AMJ ORTHOD DENTOFAC ORTHOP 1990;97:273-80.)

CASE REPORT DIAGNOSIS The patient was a 47-year-old man who had a bilateral Class II malocclusion with a severe overbite of 9 ram. The $/4111~7

upper incisors were uptight and malaligned. There were minor rotations of the lower central incisors, and the lower tight first premolar was in complete lingual crossbite. The ANB angle was 5 ° and the FMA was 23 °. (See Figs. 1-12 and Table I.)

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Fig. 1, A through C. Pretreatment facial photographs.

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Am. J. Orthod. Dentofac. Orthop. April 1990

Owens

Fig. 2, A through C. Pretreatment intraoral photographs.

Fig. 3. Pretreatment casts.

Case report

~'oh~nte 97 Number 4

47.4

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Fig. 4. Cephalometric tracings before (A) and after (B) treatment and 2 years after treatment (C). T a b l e I. C e p h a l o m e t r i c v a l u e s b e f o r e , after, a n d 2 y e a r s a f t e r t r e a t m e n t

Measurement SNA SNB ANB SN-MPA NPo-FH IMPA FMA 1 APO (mm) T NA -i" NA (ram) 1 NB I NB (mm) lnterincisal angle Lower lip to esthetic plane (mm) Lower facial height (mm) OM

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Norm 82 8O 2 32 90 90 +-- 5 25 0 ± 2 22 4 25 4 131 0 _ 2 68 --- 3 16

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a 81 76 5 36 92 89 23 -2.5 iI 4 21 4 144 -6 79 16

79 75 4 38 90 100 25 +3 18 5 33 8 126 -6 81 16

81 76 5 38 91 91 26 -.5 16 4 25 7 ! 35 -6 79 16

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Am. J. Orthod. Dentofac. Onhop. April 1 9 9 0

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Fig. 5. Cephalometric tracing superimpositions.

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An American Board of Orthodontics case report.

This case report describes an adult patient with a bilateral Class II malocclusion and an extremely deep overbite. The patient was treated without ext...
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