Vertical dimension is defined distance between two points one is on maxilla and the other is on mandible. When the posterior stop by teeth is lost, the patient will loose his vertical dimension, so many emerge temporomandibular disorder, loss of masticatoy function, and collapse of occlusion, In case where maxillary and mandibular teeth cross each other, it is required that removable partial denture should be strongly supported by remaining teeth and mucosa. Conical crown retained denture(CCRD) composed of inner and outer crown meets excellently this requirement by rigid support and konuspassung. Attachment with removable partial denture(RPD) is mainly used to the condition that anterior tooth is most posterior abutment for esthetic reason. The purpose of this study is to restore the lost vertical dimension in the patient with crossed occlusion after finding the centric relation and recording the intermaxillary relationship using the intra-oral tracer. This patient, 53 years old man came to our Chosun University Dental Hospital for loosening of his #37 full cast crown. Clinical and radiography examination showed that vertical dimension was lost, remaining teeth were involved with periodontitis, and occlusal plane was collapsed. He agreed with the treatment plan that upper jaw would be restored with Mini-Dalbo(R) attachment with RPD and lower jaw with CCRD, therefore, periodotally hopeless teeth were extracted, all of the remaning teeth was prepared, and provisional restoration and temprary denture were used for 5 months accomodation period. In 5 months he was restored with Mini-Dalbo(R) attachment with RPD and CCRD, and he was satisfied with them functionally and esthetically.
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