PubMed Health⌕ Search

Biomedical subjects

J F Piecuch

Publications and source records attributed to J F Piecuch.

At least 19 recordsLinked to original sources
PubMed2000

Long-term evaluation following temporomandibular joint arthroscopy with lysis and lavage.

Although temporomandibular joint arthrocentesis has been utilized for almost 20 years, most papers which evaluate the success of this procedure present relatively short-term data (less than two years). The purpose of this paper is to present the longer-term condition of 22 patients who were re-examined 2 to 10.8 years after arthroscopic surgery with lysis and lavage. Assessment of symptoms reported by the patient as well as of objective signs noted on clinical examination confirms resolution of pain on movement and increased vertical opening. These findings suggest that arthroscopic surgery of the temporomandibular joint is successful in the long term for patients with painful motion.

Adult↗
PubMed1995

Long-term effects of orthognathic surgery on the temporomandibular joint: comparison of rigid and nonrigid fixation methods.

Sixty-six patients were examined between 2 and 9.5 years after bilateral sagittal split mandibular ramus osteotomy. Thirty-two patients had nonrigid fixation consisting of superior border wires and intermaxillary fixation, while 34 patients had rigid plate fixation of the osteotomy sites with immediate function. There were no demonstrable long-term differences between the two groups with respect to mandibular vertical opening, crepitance, and temporomandibular joint pain. Masticatory muscle pain and temporomandibular joint clicking improved with rigid fixation and worsened with nonrigid fixation.

Adult↗
PubMed1995

Neurologic emergencies.

Neurologic emergencies are rare, and they usually occur in easily identifiable patients, provided that a thorough medical history has been previously obtained. Rare as these may be, however, they occur without warning and are potentially life threatening. Consequently, the dentist should be prepared by virtue of knowledge of the pathophysiology and therapy and by formal training and certification in basic life support.

Brain Diseases↗
PubMed1990

Long-term evaluation of porous hydroxyapatite blocks for alveolar ridge augmentation.

Eleven patients, with a combined total of 14 atrophic edentulous ridges, underwent subperiosteal ridge augmentation with porous hydroxyapatite blocks. Clinical evaluation was continued for 4.5 to 6.5 years. All patients suffered long-term complications. The authors recommend that this material not be used for this purpose in the future.

Alveolar Ridge Augmentation↗
PubMed1986

Augmentation of the atrophic edentulous ridge with porous replamineform hydroxyapatite (Interpore-200).

The use of porous replamineform hydroxyapatites (Interpore-200) provides an opportunity for rapid stabilization of the ceramic implant by connective tissue and bony ingrowth into the porous network. The strength of the Interpore-200-tissue combination provides good resistance to denture forces. Once ingrown with tissue, the implants will remain well stabilized, appear resistant to local trauma, and have the capacity to heal if exposed, as a viable blood supply is contained within the material.

Alveolar Process↗
PubMed1984

Compressive strength of implanted porous replamineform hydroxyapatite.

Porous replamineform hydroxyapatite is a nontoxic, nonallergenic synthetic ceramic currently under investigation as an implant for restoration of atrophic edentulous ridges. Previous studies have demonstrated its capacity to permit the ingrowth of bone into its pores. Evaluation of the material was carried out to determine its eventual compressive strength following implantation. Bony penetration results in a significant increase in strength, judged to be sufficient for support of dentures.

Animals↗
PubMed1984

Morphologic analysis of upper lip area following maxillary osteotomy via the tunneling approach.

Preservation of favorable upper lip morphology is a critical factor in assessing the success of maxillary osteotomy surgery. Unesthetic postsurgical lips often appear thin and tight, with the vermilion border shortened and rolled inward. Clinical observation of patients who had undergone total maxillary alveolar process osteotomies by means of vertical buccal incisions and a tunneling approach suggests that presurgical lip morphology is minimally changed. This study investigates the presence and degree of change in upper lip morphology following this technique. Pre- and postoperative cephalometric radiographs of ten patients were compared by superimposition of acetate tracings on cranial base landmarks. Cross-sectional lip area was calculated by compensating polar planimetry presurgically and at four intervals following intervention: 1 to 3 days, 1 to 3.5 months, 6 to 9 months, and more than 10 months. Analysis showed the cross-sectional upper lip area, compared to the presurgical baseline, to be as follows: Immediately following surgery, the area increased by a mean of 27.8% (range, 15.0% to 36.9%; SE = 4.72). At 1 to 3.5 months postsurgery, the increase was reduced to 3.3% (range, 0 to 7.7%; SE = 0.82). At 6 to 9 months, lip area remained minimally increased, at + 0.78% (range, -5.0% to 7.6%; SE = 1.68). At 10 months or longer, the mean increase from preoperative values was 0.61% (range, -6% to 6.4%; SE = 1.38). The results of this study indicate that the upper lip cross-sectional area returns to its presurgical value at 6 months following surgery and remains constant at subsequent measurements. The performance of maxillary surgery with this flap design appears to preserve presurgical lip morphology.

Adult↗
PubMed1984

Augmentation of the atrophic maxilla with interpositional autogenous bone grafts.

Extreme ridge atrophy is a significant problem when it occurs in the maxilla, since inadequate denture function, as well as poor facial aesthetics, commonly result. Use of the Le Fort I osteotomy of the maxilla with interpositional iliac cortico-cancellous bone grafts is a predictable method of ridge augmentation in severe cases. In our experience, secondary vestibuloplasty has not been necessary prior to construction of new prostheses. Patient satisfaction has been excellent.

Alveolar Ridge Augmentation↗
PubMed1983

Results of soft-tissue surgery over implanted replamineform hydroxyapatite.

Sixteen replamineform hydroxyapatite implants were inserted subperiosteally on the residual ridge in five dogs, and various soft-tissue procedures were performed at intervals of one, two, three, and 27 months after implantation. Three implants served as controls. Twelve of the 13 surgical sites healed normally, including four of the five vestibuloplasties and all eight exposure sites. All 16 implants were still in place and firmly attached to the alveolar bone at the time of sacrifice. A normal stratified squamous epithelium was formed in all specimens in which complete healing occurred. No evidence of an inflammatory reaction was found in response to the soft-tissue surgery in the specimens that healed. The favorable results of this study form the basis for proposed human clinical trials to evaluate the response of the implant and the overlying soft tissues to a dental prosthesis.

Alveoloplasty↗