Journal of Dental Implants
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CASE REPORT
Year : 2017  |  Volume : 7  |  Issue : 2  |  Page : 59-63

Neutral zone concept applied in implant-supported mandibular complete denture treatment of a retrognathic patient


Department of Dental Materials and Prosthodontics, Araraquara Dental School, Universidade Estadual Paulista, Araraquara, São Paulo, Brazil

Correspondence Address:
Dr. Diogo Longhini
Department of Dental Materials and Prosthodontics, Universidade Estadual Paulista, Humaitá Street, 1680, Araraquara, São Paulo, Zip Code: 14801-903
Brazil
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jdi.jdi_2_17

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This case report demonstrates the neutral zone technique for oral rehabilitation of patient with severe retrognathism, who had a previous implant-supported complete denture with improper relationship between artificial teeth and oral structures. A new mandibular screw-retained implant-supported complete denture was made base-on neutral zone principles to give to the patient a comfortable and functional prosthesis. The nonfunctional position of artificial teeth in complete denture may impair in oral functions such as speaking, swallowing, smiling, as well as loss of denture retention and stability, discomfort, and injuries to oral soft tissues. Neutral zone concept aids to produce complete denture more suitable, once it harmonizes the prosthesis to anatomic structures. In implant-supported complete dentures, retention and stability problems are not a concern. However, in some situations, nonfunctional artificial teeth position causes oral lesions, discomfort, and phonetics problems. Although neutral zone is a technique developed for conventional complete denture, it can be useful in implantology.


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