Survival of fixed dental prostheses in edentulism
Researchers have examined the survival of a type of zirconia fixed dental prostheses.
In a study published in the Journal of Dentistry, the researchers used a digital workflow to fabricate and subsequently place full-arch, implant-supported monolithic zirconia fixed dental prostheses in 20 edentulous arches. They then used periapical radiographs to determine marginal bone level changes.
The researchers observed a 100% success and survival rate for the implants through Year 1, while implant success dropped to 88.75% at Year 2. Bone types two to four and implant sites without guided bone regeneration presented with greater marginal bone levels; whereas removable antagonists, wider and longer implants and anterior implant positions were risk factors for lower marginal bone levels.
As a result of the positive findings, the researchers indicated that full-arch, implant-supported monolithic zirconia fixed dental prostheses could be effective treatment options for edentulism. Nonetheless, longer studies will be needed to confirm the findings.
Read more: Journal of Dentistry
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