Biomedical subjects

J Lustig

Publications and source records attributed to J Lustig.

11 recordsLinked to original sources

PubMed2006

[Vertical root fractures in endodontically treated teeth part I: clinical and radiographic diagnosis].

A correct and quick diagnosis of endodontically treated vertically fractured teeth is important for two main reasons: (1) the differential diagnosis between the clinical and radiographic appearance of periodontal disease and endodontic failures, and (2) the delay in making the correct diagnosis will result in rapid loss of supporting bone, especially on the buccal side. Typical clinical signs in the maxillary and mandibular premolars and mesial root of the mandibular molars, which are the most susceptible roots and teeth, for fracture are a highly located sinus tract and a deep bony defect along the root facing the fracture line. In the maxillary and mandibular premolars and the mesial root of mandibular molars, typical bony radiolucencies are the halo, vertical and periodontal types. Radiolucency in the bifurcation was typical in vertical root fractures of mandibular molars.

Humans↗

PubMed2006

[Vertical root fractures in endodontically treated teeth--Part II: Etiology and prevention].

The etiologic factors for vertical fractures in endodontically treated teeth are predisposing factors, such as loss of tooth material, anatomy of the susceptible teeth, moisture loss, previous dentinal cracks, and loss of bone support; and iatrogenic factors, such as excessive removal of radicular dentin as a result of endodontic and prosthetic procedures and improper selection of dowels. Identification of susceptible teeth and roots, proper selection and cementation of dowels, and avoidance of excessive force during condensation of gutta percha and in removal of tooth structure during endodontic and prosthetic procedures, are all measures that can be taken to prevent root fractures.

Dental Restoration Failure↗

PubMed2001

An evaluation of endodontically treated vertical root fractured teeth: impact of operative procedures.

Vertical root fractures of endodontically treated teeth are a frustrating complication that leads to extraction. The aim of the current survey was to evaluate the role of operative procedures in the etiology of this complication. A total of 154 endodontically treated vertical root fractured teeth were cleaned and washed after extraction and maintained in individual vials. Periapical radiographs before extraction, clinical findings and previous operative procedures were recorded. A post was observed in 95 teeth (61.7%), with 66 of these ending at the coronal third of the root. Most were screw posts of the Dentatus type (n = 64) and tapered cast posts (n = 14). A full crown was observed in 118 teeth, and 65 of these (55%) were extracted between 1 to 5 yr after final restoration. In 24 crowned teeth extraction was conducted within 1 yr after restoration and in 28 teeth after >5 years. It was concluded that post placement and root canal treatment are the major etiological factors for root fractures. Because signs and symptoms can appear years after the operative procedures in the root have been completed, coronal restorations would not interfere with the correct clinical diagnosis of vertical root fractures. Frequent recalls are recommended to diagnose vertical root fractures early, especially in susceptible teeth, such as premolars and mesial roots of mandibular molars.

Bicuspid↗

PubMed1999

An evaluation of endodontically treated vertically fractured teeth.

For this survey, 92 vertically fractured endodontically treated teeth were evaluated clinically and radiographically before and after extraction. The maxillary second premolars (27.2%) and mesial roots of the mandibular molars (24%) were the most fractured teeth. In 67.4% of the teeth, a solitary buccal pocket was present; in 34.8%, a fistula frequently appeared closer to the gingival margin than to the apical area. A lateral radiolucency or a combination of lateral and periapical radiolucency was found in more than half of the cases. The general practitioners correctly diagnosed vertical root fracture in only one-third of the 92 fractured teeth in this survey.

Adolescent↗

PubMed1999

Radiographic features of vertically fractured, endodontically treated maxillary premolars.

OBJECTIVE: The purpose of this study was to evaluate the most frequent radiographic appearance of bony lesions associated with vertically fractured roots of endodontically treated maxillary premolars. STUDY DESIGN: The radiographic features of 102 endodontically treated teeth and their periradicular areas (51 with and 51 without vertically fractured roots) were evaluated and compared. RESULTS: The predominant appearance of the periradicular area in the teeth with vertically fractured roots was the "halo" lesion (57%); by contrast, in the non-vertically fractured roots group, a "periapical" radiolucent lesion was most frequently found (55%). Angular bone loss (14%) and periodontal radiolucency (14%) were also typical radiolucent lesions in the vertically fractured teeth. CONCLUSIONS: "Halo" lesion, perilateral radiolucency, and angular resorption of the crestal bone, combined with diffuse or defined but not corticated borders, indicated a high probability of vertical root fracture in maxillary premolars.

Bicuspid↗

PubMed1999

Prevalence of vertical root fractures in extracted endodontically treated teeth.

AIM: The aim of this study was to evaluate the prevalence of vertical root fractures (VRF) in extracted endodontically treated teeth and to correlate the findings to previous studies and surveys. METHODOLOGY: Root-canal-treated teeth were referred for extraction from a public dental clinic. The endodontic therapy had been completed by a variety of dentists. Each tooth was evaluated following extraction by the oral surgeon who performed the procedure: the exact aetiology for the clinical diagnosis that led to the extraction was recorded. RESULTS: The major reasons for extraction were restorative (43.5%) and endodontic (21.1%), followed by vertical root fractures (10.9%). CONCLUSIONS: The relatively high prevalence of vertical root fractures in this survey compared with previous clinical and radiographic surveys was probably related to the difficulties in making a clinical diagnosis of vertical fractures before extraction.

Adolescent↗

PubMed1999

American Academy of Pediatrics. Pediatric Practice Action Group and Task Force on Medical Informatics. Privacy protection and health information: patient rights and pediatrician responsibilities.

Pediatricians and pediatric medical and surgical subspecialists should know their legal responsibilities to protect the privacy of identifiable patient health information. Although paper and electronic medical records have the same privacy standards, health data that are stored or transmitted electronically are vulnerable to unique security breaches. This statement describes the privacy and confidentiality needs and rights of pediatric patients and suggests appropriate security strategies to deter unauthorized access and inappropriate use of patient data. Limitations to physician liability are discussed for transferred data. Any new standards for patient privacy and confidentiality must balance the health needs of the community and the rights of the patient without compromising the ability of pediatricians to provide quality care.

Computer Security↗

PubMed1994

Bipedicled myomucosal flap for reconstruction of the lip after vermillionectomy.

Solar keratosis is a well-documented premalignant condition caused by actinic radiation on the vermillion. The usual treatment method consists of surgical removal of the damaged area by means of sharp dissection, electrosurgery, chemical peeling, or recently CO2 laser beam. The denuded area is left to reepithelize (in cases of superficial removal) or is reconstructed by advancing mucosal flaps. Most of these methods assure a satisfactory clinical cure and a good function. The main disadvantage is esthetic because of a narrowing and flattening of the vermillion and loss of the pout. To overcome these side effects, we use a bipedicled vascularized myomucosal axial flap. Between 1982 and 1989, 19 patients were treated with this method. In this article we present the clinical aspects of solar keratosis, describe the surgical technique step-by-step, and evaluate the long-term outcome of this method.

Adult↗

PubMed1993

The children of divorce parenting intervention: outcome evaluation of an empirically based program.

Examined efficacy of an empirically based intervention using 70 divorced mothers who participated in a 12-session program or a wait-list condition. The program targeted five putative mediators: quality of the mother-child relationship, discipline, negative divorce events, contact with fathers, and support from nonparental adults. Posttest comparisons showed higher quality mother-child relationships and discipline, fewer negative divorce events, and better mental health outcomes for program participants than controls. More positive program effects occurred for mothers' than children's reports of variables and for families with poorest initial levels of functioning. Analyses indicated that improvement in the mother-child relationship partially mediated the effects of the program on mental health.

Adaptation, Psychological↗

PubMed1990

Mononeuropathies affecting the lower extremities.

Focal nerve injuries are a major source of pain and sensory disturbance in the foot, especially when branches of the tibial or peroneal nerves are involved. As patients with these disorders frequently seek podiatric evaluation early in the course of these disorders, the podiatrist must be an expert in the prompt recognition and proper treatment of these disorders.

Foot↗

PubMed1978

Keratosis follicularis spinulosa decalvans. An infant with failure to thrive, deafness, and recurrent infections.

A 10-month-old male infant had keratosis follicularis spinulosa decalvans, an X-linked dominant disorder. His cutaneous abnormalities consisted of generalized hyperkeratosis, spiny follicular papular lesions, universal alopecia, and hypoplastic nails. Ocular changes characteristic of the disease were also present. Unusual findings included deafness, failure to thrive, predisposition to bacterial infections without demonstrable immune defect, and transient hepatomegaly with abnormal liver function studies.

Adult↗