Abstract
Many investigators have studied on influences of preparation of vital teeth and associated prosthetic treatments on the pulp. Only a few, however, have referred to discomforts which patients actually suffered.In this study, patient's discomforts after preparation were investigated. The material consisted of 119 vital abutment teeth that were prepared for fixed bridges on 77 patients at the Students' Clinic of Tsurumi University.Furthermore, the follow-up examination was held 6-14 months after final cementation.The results were as follows:1. 19 teeth (16%) exhibited discomforts such as hypersensitivity against cold foods or pain while occluding. Through application of diammine silver fluoride and/or occlusal equilibration, the discomforts in 18 teeth were cured, but the pulp of one tooth had to be removed.2. Concerning sex, age and types of teeth with discomforts, higher frequency was found in women, in fifties and at upper premolars and lower molars.3. 9 patients complained first at the stage of preparation and 10 patients just at the stage of temporary fixation of bridges. There were no patients who felt discomforts first after final cementation.4. Duration of discomforts ranged from within 2 weeks to over 8 weeks at almost the same proportion.5. The teeth which displayed discomforts once were in worse situation than the control, according to the follow-up examination.
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