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Background:
It has been demonstrated that the porous tantalum surface “Trabecular Metal” determines a bone-ingrowth defined as osteo-incorporation. The excellent results reported by the orthopaedic literature since the last decade and the recent advancements have led to the development of a new trabecular metal (TM) implant in tantalum. The use and success of autogenous bone and collagenous reabsorbable membranes is similarly well described in implant dentistry.
Aim/Hypothesis:
The aim of this preliminary case series is to illustrate that TM implants can be successfully inserted into contemporaneously grafted sites without primary stability.
Material and Methods:
This technique was employed in 12 consecutive subjects. Hopeless teeth were extracted, allowing the sockets to heal spontaneously. Once soft tissue healing was observed (6-8 weeks approximately), the implants sites were re-entered, the granulation tissue was removed, clinical measurements were made at the mesio/distal and vestibular/lingual aspect of the crest and TM Implant was placed with the platform at the level of the crest. The defects were filled with autogenous bone particles and subsequently covered by reabsorbable collagen membrane. Primary closure was achieved in all the sites. Follow-up controls and bone level measurements were carried out on x-ray pictures centred with a RINN system and digitally calibrated using implant length and diameter as a reference. Stability of the implant was evaluated with an ISQ test at baseline and at second stage procedure. In all cases, at the moment of the prosthesis installation (5th month) a countertorque 30 N/cm test was carried out.
Results:
Primary wound closure was obtained in all surgeries and no complaint or adverse effects were observed during the follow-up. At second stage procedure, no evidence of peri-implant marginal bone loss was noted clinically and all implants successfully tolerated a 30 N/cm countertorque test. Additionally, the ISQ test performed at re-entry provided favorable values suggestive of successful osteo-ingration. All the 12 implants were functional up to 18 months from the surgery.
Conclusions and clinical implications:
Based on the favorable results gathered by this case series, it seems that the use of this novel technique could solve complicated cases where it is impossible to obtain primary stability, which is still considered a fundamental condition to achieve implant success.
Background:
It has been demonstrated that the porous tantalum surface “Trabecular Metal” determines a bone-ingrowth defined as osteo-incorporation. The excellent results reported by the orthopaedic literature since the last decade and the recent advancements have led to the development of a new trabecular metal (TM) implant in tantalum. The use and success of autogenous bone and collagenous reabsorbable membranes is similarly well described in implant dentistry.
Aim/Hypothesis:
The aim of this preliminary case series is to illustrate that TM implants can be successfully inserted into contemporaneously grafted sites without primary stability.
Material and Methods:
This technique was employed in 12 consecutive subjects. Hopeless teeth were extracted, allowing the sockets to heal spontaneously. Once soft tissue healing was observed (6-8 weeks approximately), the implants sites were re-entered, the granulation tissue was removed, clinical measurements were made at the mesio/distal and vestibular/lingual aspect of the crest and TM Implant was placed with the platform at the level of the crest. The defects were filled with autogenous bone particles and subsequently covered by reabsorbable collagen membrane. Primary closure was achieved in all the sites. Follow-up controls and bone level measurements were carried out on x-ray pictures centred with a RINN system and digitally calibrated using implant length and diameter as a reference. Stability of the implant was evaluated with an ISQ test at baseline and at second stage procedure. In all cases, at the moment of the prosthesis installation (5th month) a countertorque 30 N/cm test was carried out.
Results:
Primary wound closure was obtained in all surgeries and no complaint or adverse effects were observed during the follow-up. At second stage procedure, no evidence of peri-implant marginal bone loss was noted clinically and all implants successfully tolerated a 30 N/cm countertorque test. Additionally, the ISQ test performed at re-entry provided favorable values suggestive of successful osteo-ingration. All the 12 implants were functional up to 18 months from the surgery.
Conclusions and clinical implications:
Based on the favorable results gathered by this case series, it seems that the use of this novel technique could solve complicated cases where it is impossible to obtain primary stability, which is still considered a fundamental condition to achieve implant success.
Background:
It has been demonstrated that the porous tantalum surface “Trabecular Metal” determines a bone-ingrowth defined as osteo-incorporation. The excellent results reported by the orthopaedic literature since the last decade and the recent advancements have led to the development of a new trabecular metal (TM) implant in tantalum. The use and success of autogenous bone and collagenous reabsorbable membranes is similarly well described in implant dentistry.
Aim/Hypothesis:
The aim of this preliminary case series is to illustrate that TM implants can be successfully inserted into contemporaneously grafted sites without primary stability.
Material and Methods:
This technique was employed in 12 consecutive subjects. Hopeless teeth were extracted, allowing the sockets to heal spontaneously. Once soft tissue healing was observed (6-8 weeks approximately), the implants sites were re-entered, the granulation tissue was removed, clinical measurements were made at the mesio/distal and vestibular/lingual aspect of the crest and TM Implant was placed with the platform at the level of the crest. The defects were filled with autogenous bone particles and subsequently covered by reabsorbable collagen membrane. Primary closure was achieved in all the sites. Follow-up controls and bone level measurements were carried out on x-ray pictures centred with a RINN system and digitally calibrated using implant length and diameter as a reference. Stability of the implant was evaluated with an ISQ test at baseline and at second stage procedure. In all cases, at the moment of the prosthesis installation (5th month) a countertorque 30 N/cm test was carried out.
Results:
Primary wound closure was obtained in all surgeries and no complaint or adverse effects were observed during the follow-up. At second stage procedure, no evidence of peri-implant marginal bone loss was noted clinically and all implants successfully tolerated a 30 N/cm countertorque test. Additionally, the ISQ test performed at re-entry provided favorable values suggestive of successful osteo-ingration. All the 12 implants were functional up to 18 months from the surgery.
Conclusions and clinical implications:
Based on the favorable results gathered by this case series, it seems that the use of this novel technique could solve complicated cases where it is impossible to obtain primary stability, which is still considered a fundamental condition to achieve implant success.
Background:
It has been demonstrated that the porous tantalum surface “Trabecular Metal” determines a bone-ingrowth defined as osteo-incorporation. The excellent results reported by the orthopaedic literature since the last decade and the recent advancements have led to the development of a new trabecular metal (TM) implant in tantalum. The use and success of autogenous bone and collagenous reabsorbable membranes is similarly well described in implant dentistry.
Aim/Hypothesis:
The aim of this preliminary case series is to illustrate that TM implants can be successfully inserted into contemporaneously grafted sites without primary stability.
Material and Methods:
This technique was employed in 12 consecutive subjects. Hopeless teeth were extracted, allowing the sockets to heal spontaneously. Once soft tissue healing was observed (6-8 weeks approximately), the implants sites were re-entered, the granulation tissue was removed, clinical measurements were made at the mesio/distal and vestibular/lingual aspect of the crest and TM Implant was placed with the platform at the level of the crest. The defects were filled with autogenous bone particles and subsequently covered by reabsorbable collagen membrane. Primary closure was achieved in all the sites. Follow-up controls and bone level measurements were carried out on x-ray pictures centred with a RINN system and digitally calibrated using implant length and diameter as a reference. Stability of the implant was evaluated with an ISQ test at baseline and at second stage procedure. In all cases, at the moment of the prosthesis installation (5th month) a countertorque 30 N/cm test was carried out.
Results:
Primary wound closure was obtained in all surgeries and no complaint or adverse effects were observed during the follow-up. At second stage procedure, no evidence of peri-implant marginal bone loss was noted clinically and all implants successfully tolerated a 30 N/cm countertorque test. Additionally, the ISQ test performed at re-entry provided favorable values suggestive of successful osteo-ingration. All the 12 implants were functional up to 18 months from the surgery.
Conclusions and clinical implications:
Based on the favorable results gathered by this case series, it seems that the use of this novel technique could solve complicated cases where it is impossible to obtain primary stability, which is still considered a fundamental condition to achieve implant success.