41994_Australasian_Dentist_100_EMAG

CATEGORY LINICAL

e insertion cylinders are detached from the implants by removing the xation screws. e cylinders can be kept away to use later as impression copings. Healing caps are tted on the implants.

e prosthesis was modi ed to reduce the retentive concavities and allow better cleaning and home care. is modi cation of the prosthesis resulted in an immediate relief in the patient’s speech. A cover cap was tted on the Miniature implant.

An open tray impression was taken using PVS impression materials at 10 weeks after implantation. e nal restorations are two attached zirconia crowns which are made and tted on the implants after 12 weeks from the implant placement.

almost all implants in the upper arch and progressive bone loss with at least one implant. e prosthesis was removedwhich revealed a design that allows signi cant plaque retention.

After a healing period of 6 weeks with improvement in patient’s home care, the implants presented a healthy peri-implant mucosa with no bleeding or pocketing. e nal prosthesis was fabricated in form of a hybrid titanium reinforced Zirconium prosthesis made by Osteon iOS.

e middle implant in region of #21 found to be placed far too palatal which caused a signi cant bulk of the prosthesis. is extended bulk a ected or impaired the patient’s speech. e a ected implants were treated for peri-implantitis. is included debridement and decontamination of the implants and abutments followed by explantation of the implant #21. e site of the failed implant #21 presented a severe bone loss and couldn’t host another implant unless a bone augmentation procedure was considered. e remaining narrow ridge in the buccal aspect of the site was used to insert a Miniature implant of 2 x 14mm with no bone drilling technique.

Case 2: e patient is a 51-year-old female with intention to upgrade her upper prosthesis to a more durable prosthesis. She had treatment done for full arch rehabilitation with implants for the upper arch and two single implants in the lower molar region in ailand. e information obtained from the clinic in ailand con rmed using ve Intra Lock implants with Multi unit abutment which were restored with a metal reinforced acrylic prosthesis. She also had two Zimmer implants for the area of right and left 1st molars.

e initial examination revealed that the implants in the upper arch presented some degree of peri-implantitis with

AUSTRALASIAN DENTIST 77