One piece zirconia implants for the replacement of single units:
A case series
• titanium and its alloys are the most commonly used dental implant materials
• although very succesful, certain disadvantages have been described:
➡ Extensive peri-implant infections
➡ Association with foreign bodies (titanium, dental cement)
➡ Grey shimering of Ti
➡ Corrosion, metal abrasion
➡ increased concentration of titanium in the direct environment of
implants and in regional lymph nodes
➡ Ti allergy
Zirconia was introduced in the 1990’s
➡ posts, frameworks, abutments for dental applications
• Less mucosa discoloration/ better color match to the soft tissue at natural teeth
than with titanium
• Significantly lower bacterial adhesion than with titanium surfaces
• Less inflammatory infiltration in the peri-implant tissue than with gold and titanium
• Favorable for the formation of epithelial attachments and mucosal obturation
• Significantly increased micro-circulation in peri-implant soft tissue compared to
Material and Methods
•13 healthy patients between 19 and 70 years old (mean 44.5), 6 females (46.15%) and
7 males (53.8%).
•A total of 18 Ceraroot © Zirconia implants were placed following the
recommendations of the manufacturer
•Cement-retained ceramic fixed restorations were delivered 4 months after implant
•6 months recall intervals for the first 2 years, and yearly after that.
•Peri-apical radiographs were taken at each follow up and crestal bone level changes
•Additional clinical parameters such as soft tissue health, including pocket-probing
depth, bleeding on probing, plaque index, and gingival index were also calculated
• follow up time was 1-4 years (mean 2.6 ± 0.21)
cumulative survival and success rates of 93.3% was found for one-piece zirconia dental implants.
• one implant failed prior to receiving the final restoration due to trauma in molar area
• Another implant presented with recession on the buccal aspect due to the pressure exerted by a removable partial
denture during the osseointegration phase
• No fracture of implants were reported during the follow up period
One-piece zirconia dental implants showed similar survival and success rates compared to traditional titanium dental implants after an observation period of 4 years
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