Acrylic resin root implants: A preliminary report

doi:10.1016/0022-3913(68)90067-X

The Journal of Prosthetic Dentistry

Volume 19, Issue 5, May 1968, Pages 506-513

https://doi.org/10.1016/0022-3913(68)90067-X Get rights and content

Abstract

An investigation was developed to test the clinical possibilities of a method to preserve the residual alveolar bone immediately following tooth extractions. Clinical observations of bone stability over retained roots or teeth led to this study.

Observations showed that resorption proceeds at a slower rate over the implant area and that the presence of the implant did minimize the amount of bone loss over the period observed.

The nagging fear of the development of malignancy through the use of acrylic resins has caused the temporary withdrawal of an otherwise handy and practical material from future phases of this investigation. It is hoped similarly based investigations using roots of the extracted teeth themselves as implants will be continued.

Primary union of the oral tissue over the open socket is an important factor for success. The positioning of the implants (3 mm. or more below the infraalveolar bone crest) appears as a factor in the success of the implant and the organization of the blood clot. Future investigations must bear these important features in mind.

Reference (4)

WaerhaugJ. et al.
Implantation of Acrylic Roots in Tooth Sockets
Oral Surg., Oral. Med. & Oral Path.
(1956)
LamR.V.
Tissue Changes of the Alveolar Processes Following Extractions
J. Pros. Dent.
(1960)

There are more references available in the full text version of this article.

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A study was undertaken to evaluate the safety and efficacy of Durapatite cones as an immediate submerged-root implant in the mandibular symphysis region. The study involved 30 patients of which 15 received 96 implants and the other 15 served as controls. The clinical and radiographic results revealed the implants to be well-accepted by alveolar bone. No evidence of rejection or major complications were observed. The principal problem which occurred was dehiscence of mucosa over some implants. This problem was attributed to operative technique. There was significantly less vertical bone loss and contour change in the anterior part of mandible in the implant group than in the control group.
Alveolar ridge maintenance with hydroxylapatite ceramic cones in humans
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The efficacy of solid cones of hydroxylapatite ceramic implanted in fresh extraction sockets for the preservation of alveolar bone was evaluated. Ten experimental subjects (70 implants) and eight control subjects (63 extractions) were treated. After extraction, hydroxylapatite ceramic cones were inserted into the sockets at least 1 mm below the alveolar crest in the experimental group. Alveolar ridge resorption was measured on lateral cephalometric radiographs, and statistical analysis was performed. The follow-up periods ranged from 12 to 24 months (mean, 20.6 months). Thirty-seven of the 70 hydroxylapatite ceramic cone implants (53%) became exposed, and 19 cones (27%) had to be removed. It was concluded that hydroxylapatite ceramic cone implants placed in fresh extraction sockets do not significantly preserve alveolar bone.
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^*: Senior Lecturer, Department of Prosthetic Dentistry.

¹: Dr. Lam: Dental Clinic General Hospital Singapore 3 Republic of Singapore.

^**: Lecturer, Department of Oral Medicine and Oral Surgery.

²: Dr. Poon: Ohio State University College of Dentistry 305 W. 12th Ave. Columbus, Ohio 43210.

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Acrylic resin root implants: A preliminary report

Abstract

Oral Surg., Oral. Med. & Oral Path.

J. Pros. Dent.