| Splinted or Non-splinted: 다수의 인접한 치아 결손부 수복을 위한 임플란트 보철 |
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윤형인 |
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이화여대 목동병원 치과보철과 |
| Splinted and non-splinted implant-supported restorations : prosthetic considerations for restoring multiple adjacent teeth |
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Hyung-In Yoon |
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Department of Dentistry, School of Medicine, Ewha Womans University |
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| Abstract |
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The purpose of this paper was to investigate the significance of splinted and non-splinted implant-supported restorations with an internal connection for multiple consecutively missing teeth. Upon examination of the effects of fixture-abutment connection, the distribution of occlusal load was favorable in splinted implant-prosthesis with an external connection, but effect of strain distribution was not significant in splinted implant-prosthesis with an internal connection. In splinted implant-prostheses for short implants, strain distribution was not affected by the method of retention. For cement-retained prostheses, the effect of strain distribution due to splinting was not significant. In clinical studies, non-splinted prostheses with an internal connection for multiple consecutively missing teeth showed high survival rate, mild marginal bone loss, and stable periodontal condition. However, failure to achieve optimal proximal contact between single-unit prostheses may lead to food impaction, and veneer fracture may be inevitable when the framework provides inadequate support in the proximal region. In conclusion, splinted implant-prosthesis is not an indication in all cases, and clinical consideration of its use should be based on the patient's oral condition, such as location and number of implants, formation of proximal contact, canine guidance, existence of parafunctional habit, and oral hygiene, when multiple consecutively missing teeth are replaced by internal connection type implant. |
| Key Words:
Splinted;Non-splinted;Implant restorations;Strain distribution;Internal connection; |
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