IADR Abstract Archives
Comparative Aesthetic Analysis Between Titanium and Zirconium Implants. A Randomized Clinical Trial.
Abstract Body: Introduction: Pure titanium is nowadays the material of choice for dental implants. However, in certain situations of high aesthetic demand, the gray color may compromise the results. As an alternative, yttria partially stabilized zirconium dioxide (Y-TZP), has proven to have an extraordinary hardness, similar aesthetics as natural tooth and surface characteristics that has shown comparable results of osseointegration with titanium.
Objective: To compare aesthetic results between zirconium and titanium implants in the anterior superior sector.
Material and methods: A controlled, randomized and parallel clinical trial was designed. Each patient was assigned by randomization per block to each of the two treatment groups. The test group consists of Straumann® pure ceramic implants and the control group consisted in Straumann standard titanium implants. The implant placement surgery was performed following the same protocol for both study groups. In addition, provisional prostheses were placed without occlusion and a post-surgical protocol was implemented. The aesthetic, clinical and radiological variables were evaluated at 6 and 12 months after implant placement.
Results: Thirty patients with 1-year follow-up were analyzed. At one year, the titanium group obtained a value in the Meijer index of 2.50±2.82, versus 2.69±2.13 in the zirconium, not reaching statistically significant differences. In the Belser index, the zirconium group obtained a value per year of 7.62±1.19, compared to 7.63±1.74 in the control group (not significant differences). In the evaluation of the treatment by the patient, the zirconium group obtained a mean of 9.92±0.27 and the titanium group 9.81±0.40 (not significant differences). The probing depth was always lower in the zirconium group, compared to titanium, observing no significant differences in probing depth in distal sites.
Conclusions: Zirconia implants has been shown to offer peri-implant stability, both in soft and hard tissues, as well as a biomechanical behavior, comparable to titanium implants, one year after placement.
Funding: The materials (implants and abutments) were donated by Straumann (Basel, Switzerland). The presentation is one of the awards within the agreement between CED-IADR and the Spanish Society of Periodontology (SEPA).
Objective: To compare aesthetic results between zirconium and titanium implants in the anterior superior sector.
Material and methods: A controlled, randomized and parallel clinical trial was designed. Each patient was assigned by randomization per block to each of the two treatment groups. The test group consists of Straumann® pure ceramic implants and the control group consisted in Straumann standard titanium implants. The implant placement surgery was performed following the same protocol for both study groups. In addition, provisional prostheses were placed without occlusion and a post-surgical protocol was implemented. The aesthetic, clinical and radiological variables were evaluated at 6 and 12 months after implant placement.
Results: Thirty patients with 1-year follow-up were analyzed. At one year, the titanium group obtained a value in the Meijer index of 2.50±2.82, versus 2.69±2.13 in the zirconium, not reaching statistically significant differences. In the Belser index, the zirconium group obtained a value per year of 7.62±1.19, compared to 7.63±1.74 in the control group (not significant differences). In the evaluation of the treatment by the patient, the zirconium group obtained a mean of 9.92±0.27 and the titanium group 9.81±0.40 (not significant differences). The probing depth was always lower in the zirconium group, compared to titanium, observing no significant differences in probing depth in distal sites.
Conclusions: Zirconia implants has been shown to offer peri-implant stability, both in soft and hard tissues, as well as a biomechanical behavior, comparable to titanium implants, one year after placement.
Funding: The materials (implants and abutments) were donated by Straumann (Basel, Switzerland). The presentation is one of the awards within the agreement between CED-IADR and the Spanish Society of Periodontology (SEPA).