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Biomedical subjects

A Benech

Publications and source records attributed to A Benech.

At least 37 records · Page 2Linked to original sources
PubMed1985

Relationship between postvaccinal anti-influenza antibodies, blood magnesium levels, and HLA antigens.

Seventy-eight healthy subjects belonging to 16 different families were submitted to an anti-influenza vaccination. The antibody titers and the red blood cell and plasma Mg concentrations were determined before and 30 days after vaccination. The population study performed on 32 subjects showed the occurrence of a higher antibody response (P less than 0.01) and a lower red blood cell Mg level, among the Bw35 individuals. These findings are confirmed by family studies: HLA identical sibs have values much closer to those of the propositi than to those of the HLA different sibs. The relationships between HLA, immune response, and Mg revealed by the present investigation are discussed in light of the literature together with the known associations between HLA Bw35 antigen and diseases.

Adult↗
PubMedDate not supplied

[Anesthetic efficacy of an eutectic mixture of lidocaine and prilocaine (EMLA) on the oral mucosa: prospective double-blind study with a placebo].

BACKGROUND AND AIMS: The aim of this study was to evaluate the topical analgesic efficacy of an eutectic mixture of lignocaine and prilocaine (EMLA) cream on oral mucosa. METHODS: The study evaluated a total of 52 patients of legal age to give their informed consent, requiring the removal of metal maxillary and/or mandibular splints used to contain fractures. A double-blind prospective study was carried out using EMLA cream and placebo during the removal of metal splints. The placebo cream contained the eccipients of EMLA cream without the active ingredients. After the removal of the metal clips, patients were invited to quantify the pain using a visual analog scale of 100 mm. Patients were then evaluated using an objective examination to identify the possible presence of alterations to the oral mucosa. RESULTS: The analysis of results highlighted a statistically significant difference (p < 0.01) between EMLA cream (23 mm) and placebo (35.3 mm) in reducing pain consequent to the removal of metal splints and the relative pericoronal bindings. As shown by the results of this study, the analgesic effect of EMLA cream on oral mucosa allow the application of contact anesthesia to be broadened to oral surgery and dentistry, limiting it to those procedures that do not involve deep tissues and only require short-term anesthesia.

Analgesics↗
PubMedDate not supplied

[Evaluation of the three-dimensional stability using dental casts after orthognathic surgery].

BACKGROUND: The increasingly frequent use of orthognathic surgery raises several questions on the results of operations, the resulting morphological and functional modifications, and the long-term three dimensional stability of the arches after surgery. In order to answer these questions a study was carried out using pre- and postoperative casts of the arches in a group of patients to evaluate the three dimensional stability of the correction. METHODS: Thirty-nine patients with different forms of malocclusion were selected who had undergone orthognathodontic surgery at least one year earlier. Twenty-seven patients (69.2%) received postoperative orthodontic treatment, including 9 who had undergone lower jaw surgery (33.3%), 3 maxillary surgery (11.1%) and 15 undergoing combined surgery (55.6%). Twelve patients (30.8%) did not receive postoperative orthodontic surgery, including 2 who had undergone lower jaw surgery (16.6%), 5 maxillary surgery (41.7%) and 5 undergoing combined surgery (41.7%). The two-dimensional reproductions of dental casts were studied using electronic image processing. Five different techniques were used (Bolton, Lundström, Howes, Staley and Reinhardt) to evaluate the dental arches. The study also evaluated whether any difference in results could be ascribed to use or absence of pre or postoperative orthodontic treatment. RESULTS: The results indicate that protocols and surgical techniques used produce dental arches that are three-dimensionally stable and the use of orthodontic treatment gives greater stability one year after surgery compared to cases treated with surgery alone. CONCLUSIONS: Major maxillary surgery should always be considered when assessing the possible solutions to malocclusions in order to correct anomalous bone formation with a reduced risk of recidivation of the correction.

Humans↗
PubMedDate not supplied

[An evaluation of the postoperative stability of the dental arches following interventions for segmental osteotomy].

The study evaluates the long-term postsurgical stability of segmentary osteotomy and compares it to the orthodontic expansion of the jaw which is well known for its tendency to relapse following contraction. The study of the postsurgical changes of the transversal and longitudinal diameters of the dental arches and of the area covered was carried out in a group of 15 patients using rigorously standardised methods. Heterogeneous variations were observed and although there was a prevalent tendency towards contractions these were small in size and of minor clinical importance. Even if only major postsurgical changes were taken into account, usually following considerable expansion of the jaw, especially if associated with the jaw's advance, it is clear that there is a greater clinical stability in comparison to orthodontic expansions. This confirms the therapeutic value of segmentary osteotomy.

Adolescent↗
PubMedDate not supplied

[Anatomo-radiological evaluation of the long term results of surgery of large odontogenic cysts].

Long term surgical results in 47 cases of great size odontogenic cysts are examined with an anatomo-radiological method. The reparative osteogenetic process of these great cysts with mandibular localization are compared with those with maxillary localization, following anatomo radiological and clinical-radiological methods. These results are also examined according to the surgical techniques used.

Bone Regeneration↗