Biomedical subjects

L G Breault

Publications and source records attributed to L G Breault.

27 records · Page 2Linked to original sources

PubMed1995

The effects of intracanal medicaments, fillers, and sealers on the attachment of human gingival fibroblasts to an exposed dentin surface free of a smear layer.

To date there has been very little research into the possible effects of endodontic therapy on regeneration of the lost periodontal attachment. The objective of this study was to examine the effects of endodontic medicaments on fibroblast attachment to dentin surfaces free of a smear layer. Pulp chambers of extracted third molars were filled with one of the following medicaments: gutta-percha with Roth's zinc oxide and eugenol-based sealer, warm gutta-percha with sealer, warm gutta-percha without sealer, calcium hydroxide, formocresol, cotton pellet, or left empty. A predetermined dentin surface area was then inoculated with human gingival fibroblasts at a concentration of 2 x 10(4) cells per ml. The cells were allowed to adhere to the dentin surface for either 4 or 24 hours, then cell attachment was quantified using a methyl-tetrazolium assay. The data were analyzed using a Kruskal-Wallis one-way analysis of variance and Dunn's multiple comparison test. It was determined that fibroblast attachment was significantly reduced when exposed to formocresol or warm gutta-percha without sealer at both the 4 and 24 hour interval (P < or = 0.05). This suggests that the use of formocresol or warm gutta-percha without sealer in a root canal may impede periodontal wound healing and regeneration.

Analysis of Variance↗

PubMedDate not supplied

Enhanced fixed prosthetics with a connective tissue ridge augmentation.

Augmentation of the partially edentulous ridge can significantly improve the final prosthetic result. The subepithelial connective tissue graft is the treatment of choice to enhance soft tissue contours. The major advantage of the connective tissue graft is the preservation of the existing gingival coloration and tissue characteristics. A case is described that utilizes the subepithelial connective tissue graft for augmentation of a maxillary anterior ridge prior to prosthetic rehabilitation.

Adult↗

PubMedDate not supplied

The free gingival graft combined with the frenectomy: a clinical review.

Abnormal labial frena are capable of retracting gingival margins, creating diastemas, and limiting lip movement. When these frena are present, the traditional frenectomy alone generally is successful. However, when the frenulum is extensive, the possibility of coronal reformation exists. Several procedures have combined the frenectomy with either a lateral pedicle flap, free papilla graft, or free gingival (mucosal) graft taken from the palate. Three case reports demonstrate the continued efficacy of the traditional palatal free gingival graft when the patient has an extensive frenulum or an area of minimal esthetic concern is involved.

Adult↗

PubMedDate not supplied

Smile enhancement via internal gingivectomies.

Periodontal plastic surgical procedures provide a wide range of techniques to improve the esthetics of the mucogingival complex. Often these procedures are prerequisites for successful restorative therapy. This article presents a simple means of enhancing a patient's smile that can be provided by simple internal gingivectomies. The technique can be provided as a stand-alone procedure or in conjunction with restorative care. The surgery is simple and predictable with virtually no postsurgical sequellae.

Adult↗

PubMedDate not supplied

Early creeping attachment after frenectomy: a case report.

An abnormal labial frenutomy is capable of causing retraction of gingival margins, formation of diastema and inhibition of lip and tongue movements. When aberrant frenula are present traditional frenectomy procedures are very successful. Often mucogingival procedures are needed to correct the defects that result from harmful frenum pulls. In this case presentation, an aberrant frenum was diagnosed to be associated with an area of recession on a mandibular left central incisor. Surgery was planned as a staged approach. The first phase of care was a simple frenectomy. A follow-on procedure consisting of a connective tissue graft for root coverage was planned. After only four weeks of healing from the frenectomy, creeping attachment of 1.0 mm was appreciated and the patient was able to avoid the secondary corrective surgery.

Adult↗

PubMedDate not supplied

Peripheral giant cell granuloma: a case report.

The peripheral giant cell granuloma is a reactive lesion of the soft tissue of the oral cavity. Clinical appearance ranges from normal tissue coloration to dark red or purplish. These are elevated lesions generally 5-15 mm in diameter. Etiology is considered to be chronic irritation. To decrease the risk of clinical recurrence, treatment is complete excision to include the underlying periosteum. Histologic features of the peripheral giant cell granuloma include multinucleated giant cells with a stroma that may contain osteoblasts, myofibroblasts, macrophages, and Langerhans cells. A case report is presented.

Adult↗

PubMedDate not supplied

Site-specific chlorhexidine: a periodontal alternative.

Three case reports demonstrate the clinical use of an adjunctive chlorhexidine chip capable of sustaining local antimicrobial activity for 7-10 days. The chip is easy to place, requires no additional chair time for removal, is self-adherent, and can be provided to periodontal maintenance patients on a recurring basis. This is another adjunct that can be part of the clinician's armamentarium when presented with a clinically challenging localized periodontal defect.

Adult↗

PubMedDate not supplied

Maintenance and repair of high-speed dental handpieces.

High-speed dental handpieces constitute an integral part of the dental practice. A handpiece that is worn or malfunctions is inconvenient and may affect production. This article is designed to help practitioners understand the factors that contribute to handpiece wear and breakdown. Basic maintenance and options for repair also are discussed.

Dental High-Speed Equipment↗

PubMedDate not supplied

The reinforced natural tooth pontic.

This article describes an esthetic alternative for the periodontally compromised dentition. It involves a technique for using a natural tooth pontic (bonded with resin composite and reinforced by an intracoronal orthodontic wire), for replacing an anterior tooth in a periodontally compromised, mobile dentition. Following extraction and root resection of the maxillary central incisor, recess grooves were placed into the pontic and the adjacent abutment teeth. Intracoronal round orthodontic wire (0.032) was embedded into these preparations and bonded with acid-composite, which increases the retention of the tooth pontic.

Adult↗