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http://dx.doi.org/10.4047/jkap.2014.52.4.324

Intrusion phenomenon of natural tooth bounded by implant-prostheses: a clinical report  

Kim, Joong-Hyun (Department of Prosthodontics, School of Dentistry, Yonsei University)
Yang, Sun-Bong (Daum Clinic)
Jo, Young-Sung (Laviean Clinic)
Park, Young-Bum (Department of Prosthodontics, School of Dentistry, Yonsei University)
Publication Information
The Journal of Korean Academy of Prosthodontics / v.52, no.4, 2014 , pp. 324-330 More about this Journal
Abstract
In case of implant-tooth connected prosthesis, a natural tooth tends to intrude. There are several mechanisms that explain an intrusion phenomenon. So it is reco mmended not to connect an implant with a natural tooth. A 68-year-old female had upper left $2^{nd}$ premolar and $2^{nd}$ molar extracted and underwent implant surgery on the missing area. We made an implant prosthesis and treated upper left $1^{st}$ molar with a gold crown. 2.5 year later, the patient complained about loose proximal contact and food impaction between upper left $1^{st}$ molar and $2^{nd}$ molar. Mesial side of upper left $2^{nd}$ molar implant prosthesis was soldered so that proximal contact became tight again. But after 7 months, about 2 mm intrusion of upper left $1^{st}$ molar occurred, and the patient felt periodontally originated pain on intruded upper left $1^{st}$ molar. After the gold crown on upper left $1^{st}$ molar was removed, extrusion occurred and pain was relived.
Keywords
Implant; Intrusion; Proximal contact; Extrusion;
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