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91.
Gus J. Livaditis DDS 《The Journal of prosthetic dentistry》1997,77(6):624-629
A technique is described that allows a removable partial denture with a broken clasp or a removable partial denture in which an abutment has been extracted to be restored by the reattachment of a new cast clasp component or a complete surveyed clasp assembly. The technique is applicable to most clasp designs and can include attachment to the acrylic denture base or the metal major connector. The technique is distinguished from other repair techniques by (1) providing a cast clasp replacement, (2) allowing the patient to retain the prosthesis during the repair, (3) generating a precisely formed surveyed clasp assembly by the laboratory, and (4) including an efficient transfer mechanism for the precision clasp created in the laboratory to be attached to the removable partial denture in the dental office. A two-step impression procedure is used to ensure proper relation of the partial denture to the abutments. (J Prosthet Dent 1997;77:624-9.) 相似文献
92.
A patient exhibited severe abrasion of resin posterior denture teeth including perforation of the denture base. New dentures were provided to explore the application of zirconia teeth for complete dentures. [Correction added to online publication 07 November 2012: “Zirconium” corrected to “Zirconia”.] Traditional denture procedures were combined with fixed prosthodontic CAD/CAM procedures to fabricate custom‐designed four‐tooth posterior segments in hollow crown form to reduce weight and with a retentive form for interlocking to the denture base. The new dentures were successful in reducing wear of the denture teeth over the short‐term follow‐up period. 相似文献
93.
G J Livaditis 《The Journal of prosthetic dentistry》2001,86(4):400-406
A clinical protocol is described for the treatment of intentional and unavoidable exposed pulps during crown preparation. The protocol includes a definitive cavity preparation to create space in the exposed dentin for an adhesive pulp barrier; procedures to develop the highly desirable hybrid zone to prevent microleakage; the use of a specific resinous material that serves as a long-term pulp barrier with a relatively neutral and biocompatible impact on the pulp; and the use of precise bipolar electrocoagulation to provide durable hemostasis for restoration of the pulp wall and a relatively clot-free surgical wound to facilitate healing. The protocol involves the application of gentle surgical and restorative procedures to support the inherent healing process to restore the health of the pulp. The patient presented was part of a larger investigation and was selected in an attempt to identify a fixed prosthodontic application of the proposed pulp therapy protocol. 相似文献
94.
L Di Alberti SR Porter PM Speight CM Scully JM Zakrzewska IG Williams L Artese A Piattelli SL Ngui CG Teo 《Oral diseases》1997,3(Z1):S133-S134
OBJECTIVE: To determine the frequency of detection of human herpesvirus-8 (HHV-8) in HIV-related oral ulcers. DESIGN: Analysis of archived biopsy material. METHODS: Nested polymerase chain reaction of DNA extracts. RESULTS: HHV-8 DNA was detected in six of 10 oral ulcers of HIV-positive patients without oral Kaposi's sarcoma (KS) lesions and five of 11 oral KS lesions. The positive non-KS samples were derived from various oral sites. CONCLUSIONS: In HIV-positive people, HHV-8 can infect oral tissues that are not affected by KS. 相似文献
95.
96.
Background
An upper limb arteriovenous (AV) fistula is the access of choice for haemodialysis (HD). There have been few reports of saphenofemoral AV fistulas (SFAVF) over the last 10-20 years because of previous suggestions of poor patencies and needling difficulties. Here, we describe our clinical experience with SFAVF.Methods
SFAVFs were evaluated using the following variables: immediate results, early and late complications, intraoperative and postoperative complications (up to day 30), efficiency of the fistula after the onset of needling and complications associated to its use.Results
Fifty-six SFAVF fistulas were created in 48 patients. Eight patients had two fistulas: 8 patent (16%), 10 transplanted (20%), 12 deaths (24%), 1 low flow (2%) and 20 thrombosis (39%) (first two months of preparation). One patient had severe hypotension during surgery, which caused thrombosis of the fistula, which was successfully thrombectomised, four thrombosed fistulae were successfully thrombectomised and revised on the first postoperative day. After 59 months of follow-up, primary patency was 44%.Conclusion
SFAVF is an adequate alternative for patients without the possibility for other access in the upper limbs, allowing efficient dialysis with good long-term patency with a low complication rate. 相似文献97.
98.
99.
A Livaditis L R?dberg L J?nsson G Odensj? 《Scandinavian journal of thoracic and cardiovascular surgery》1975,9(2):155-161
The current study was designed to test the value of oesophageal muscular cuffs in the repair of anastomotic defects in the thoracic oesophagus. In 30 piglets, defects involving 25%, 50% and nearly 100% of the anastomosis were created and repaired by means of a cuff derived from the oesophagus musculature. The results demonstrated that his method provides uniformly a leak-proof closure under the most severe circumstances. Oesophageal narrowing at the site of repair was common and depended on the nature of the experiment and not on the technique used. Although experimental data may not be directly transferable to human subjects, this method proved so effective that it might be the potential clinical benefit. Questionable oesophageal anastomoses and fresh oesophageal perforations are the clinical applications suggested. 相似文献
100.
The objective of this clinical study was to determine the real frequency
and clinical importance of partial obstruction of the seminal path in
patients with oligozoospermia. We have designed a prospective clinical
study including men with oligozoospermia seen at an andrological
consultation in both private and institutional hospitals. A testicular
biopsy was done on all patients under local anaesthesia. A complete study
for sterility was also done [hormonal determinations: follicle-stimulating
hormone (FSH), luteinizing hormone (LH), testosterone, testicular
ultrasound, semen analysis, testicular Doppler ultrasound, etc.]. We have
made a quantitative and qualitative evaluation of testicular biopsy
(percentage of tubules with Sertoli cell only or with hyalinization; mean
tubular diameter; number of spermatogonia, primary spermatocytes, young
spermatids, mature spermatids and Sertoli cells; and evaluation of
testicular interstitium: number of Leydig cell clusters, presence of
angiectasis, presence of perivascular inflammation). Sixty one per cent of
all oligozoospermia cases were obstructive. The principal cause of
obstructive oligozoospermia was the presence of testicular varicocele. In
obstructive oligozoospermia, the tubular diameter and number of mature
spermatids are statistically significantly higher than in non- obstructive
oligozoospermia. Obstructive oligozoospermia is a frequent condition caused
by partial obstruction of seminal path. A quantitative analysis of the
testicular biopsy is the only method of diagnosis.
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