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It is the aim of this article to present a case report involving the biopsy and subsequent histologic analysis of an acellular dermal matrix. The area of the graft in contact with the root surface did not demonstrate a histologic attachment, but was defined as fibrous tissue apposition to the root surface. In addition, the coronal portion of the graft did not appear to be revascularized or revitalized as would be expected with an autogenous soft tissue graft. Finally, no new cementum formation was seen, but displacement of the junctional epithelium was observed.

A procedure has been presented, with indications and necessary precautions, for predictably covering the denuded root surfaces of canines and premolars. The results of treating other areas with this technique have been less predictable. An alternate technique for covering denude root surfaces of the same teeth has been described. The alternate technique is more difficult to carry out and the results achieved are not as favorable.

When treating patients, the objectives of restorative therapy must be clear. The first and most basic objective is preservation of the teeth. The attainment of this objective would be far less complex if it could be considered independent of restoration of function, comfort and esthetics, but such is not the case. The latter objectives usually require sophisticated restorative dentistry and often include restorations with intracrevicular margins. Although it is widely accepted that the best restorative margin is one that is placed coronal to marginal tissue, most restorations have margins in the gingival crevice, and permanent tissue damage is common. In attempting to reach his objective, the restorative dentist must remember the fundamental precept of the health professions, which is: Do no harm. Daily observation of the three physiologic dimensions permits the therapist to restore teeth with minimal injury to the periodontium.