Clinical application of custom all-ceramic crown based on CT data in maxillary anterior implant tooth / 口腔疾病防治

Objective @#To evaluate the clinical outcomes of custom all-ceramic crown fabricated in zirconia based on CT data in maxillary anterior implant tooth. @*Methods@#15 patients with single anterior tooth missing were applied to this treatment. Crown remodeling according to the opposite tooth, fabrication of the all-ceramic crown was finished based on the data capture via CT scan. The observation period extended 2-7 years on average.@*Results@#The survival and success rates were 100%. Soft tissue was stabile in follow up photos. All of the patients were satisfied with the restorations. @*Conclusion @#The custom all-ceramic crown based on CT data showed good interface friendship with both of the hard and soft tissues and the aesthetics result is predictable.

Immediate implant placement into extraction sites with periapical lesions in the esthetic zone: a case report / 대한치과보철학회지

Esthetics is important in restoring maxillary anterior area. Alveolar bone resorption and loss of interdental papilla may be minimized by immediate implantation. Previous studies showed successful results with the immediate implantation in healthy extraction socket, while many of these studies objected the immediate implantation into extraction sites with periapical lesions. Recent studies, however, reported successful results of the immediate implantation into extraction sites with periapical lesions with careful debridement of extraction sockets and general medication of antibiotics prior to implantation. A 73-year-old female visited the department of Prosthodontics in oo University Dental Hospital with the chief complaint of fallen post-core and crown on left maxillary incisor. Although the incisor was with vertical root fracture and periapical lesion, the immediate implantation following the extraction of tooth was planned. Thorough socket debridement, irrigation with chlorhexidine, and tetracycline soaking were followed by immediate implantation. The general medication of antibiotics (Moxicle Tab.(R), 375 mg) was prescribed before and after the surgery. Immediate provisional restoration was delivered two days after the surgery, and the definitive metal-ceramic restoration was placed about six months later after reproducing the emergence profile from the provisional restoration. This case presents satisfying result esthetically and functionally upto two years after the placement of prosthesis with the harmonious gingival line and no loss of marginal bone.