Retrospective Study
121 ZV3 (Patent™) Implants in 74 consecutively treated patients over 3 years
In partially edentulous patients endosseous zirconia implants offer 3-year survival rates similar to that of titanium implants, with healthy and stable soft and hard tissues.
Key Take Aways:
- 96,5% survival rate over 3 years
- Implants placed immediately or delayed
- PPDs of 1.8 ± 0.4 mm and mean
BOP scores (4.1% ± 4.2%) - Significantly lower PPD and BOP around
implants than around teeth - Stable marginal bone levels (mean bone
loss of 0.1 ± 0.6 mm after 3 years)
Retrospective Study
91 Patent™ Implants in 39 patients over
5 - 12 years of function
Endosseous zirconia implants can be used in compromised patients with little biological complications over the long term.
Key Take Aways:
- Compromised patients
(systemic disease, heavy smokers,
periodontitis, medication) - Implants placed immediately or delayed
(with immediate or delayed loading). - Bone grafting was performed when needed
- No peri-implantitis according to current
definitions (Berglund et al.) - No progressive bone loss
- 8 implants showed bone loss of 3 mm
(correlated with too deep implant placement) - 3 implants showed periimplant mucositis,
no pockets around the other implants
Prospective Study
52 ZV3 (Patent™) two-piece Implants for single tooth replacements over 2 years
Within the limitations of a prospective cohort study, it was concluded that this two-piece zirconia implant with its glass fiber abutment can be successfully used in the clinical indication investigated.
Key Take Aways:
- 95,8% survival rate
- Internal sinus lifts and simultaneous
grafting of buccal dehiscences,
when necessary - Implant failure significantly correlated
to oral surgeon - No implant fractures
- All implant sites showed an increase
of the vestibular mucosal level and a
gain of keratinized tissue at 24 months
Prospective Study
52 ZV3 (Patent™) two-piece Implants for single-tooth replacements over 9 years
In the 9-year follow-up study it was concluded that with the two-piece zirconia implant system investigated, long-term successful, reliable and esthetic restorations can be achieved.
Key Take Aways:
- 94,1% survival rate
- 1 implant lost after 110 months
- No implant fractures
- PI, BoP and PD unchanged between
2- and 9-year follow-up - 13% BoP
- 55% of patients showed no BoP
- Only two patients showed 50% BoP
- PPD of 3 mm
- Stable tissue levels after 9 years
(MR <1mm for all implants)
Preclinical Study
in the Miniature Pig Mandible
Patent™ Implants offer superior osseointegration speed and success, and a favorable soft-tissue response similar to natural teeth.
Key Take Aways:
- Bone-Implant Contact (BIC) of over 70
after 4 weeks of healing (over 80%
after 8 weeks of healing) - Highly rough implant surface contributes
to rapid bone formation and osseointegration - Despite non-existent oral hygiene, only one
Implant showed slight signs of inflammation - Beneficial and firm soft-tissue adaptation
was observed around the Patent™ Implants - Soft Tissue Seal remained consistently
above soft-tissue level after 4 weeks of
healing
