Scotti R, Melilli D, Pizzo G
Dipartimento di Scienze Odontostomatologiche, Università degli Studi, Alma Mater Studiorum, Bologna, Italy.
Minerva Stomatol. 2003 May;52(5):201-10.
Hybrid prosthesis supported by natural teeth (overdenture) is widely used in clinical practice and should be executed whenever the clinical conditions suggest it. Through a critical review of the literature, the anatomical, functional, psychological and clinical advantages are emphasized. Among the first ones, the prophylaxis of residual anatomical components, due to the limitation of bone resorption, and the preservation of sensorial proprioception are relevant. Important advantages are also represented by a better crown-root ratio of residual teeth supporting overdenture, with the consequent improvement of the longitudinal prognosis of such teeth. The greater retention and stability of overdenture in comparison with complete denture greatly improve the masticatory efficacy. The psychological advantages resulting from the dental anchorage, which allows the patient to be more confident in social life, are also relevant. Finally, when the dental support is lost, converting overdenture into complete denture is simple and quick, and makes easier the longitudinal clinical maintenance of the denture.
由天然牙支持的混合义齿（覆盖义齿）在临床实践中广泛应用，只要临床情况表明适用就应采用。通过对文献的批判性回顾，强调了其在解剖学、功能、心理和临床方面的优势。在解剖学优势中，由于骨吸收受限对残余解剖结构的预防以及感觉本体觉的保留很重要。支持覆盖义齿的残余牙齿具有更好的冠根比，从而改善了这些牙齿的纵向预后，这也是重要优势。与全口义齿相比，覆盖义齿具有更大的固位力和稳定性，极大地提高了咀嚼效率。牙齿固位带来的心理优势也很重要，这使患者在社交生活中更有信心。最后，当牙齿支持丧失时，将覆盖义齿转换为全口义齿简单快捷，便于义齿的长期临床维护。
