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At least 757 records · Page 42Linked to original sources
PubMed2000

[Recurrence].

Relapse is a multi-factorial phenomenon to which, in the absence of universally accepted finishing criteria, each practitioner tries to oppose through some references which he is closely following to. The author lists his personal references.

Adaptation, Physiological↗
PubMed2000

Finishing occlusion, degree of stability and the PAR index.

The occlusions of sixty-five patients, treated by one private specialist orthodontist with consistent philosophy and goals, were assessed according to the PAR Index. For each patient, pre-treatment, post-treatment and follow-up study models were assessed. Follow-up models were taken at least 6.5 years following the removal of all retention appliances. Mean-weighted PAR scores were calculated for the total sample and various sub-groups at each stage. Mean percentage changes in weighted PAR scores were also calculated. The relationships between the occlusal standards at the end of active treatment and at the end of the follow-up period, and specific diagnostic and treatment factors were then investigated to search for any factors that might be predictive of long-term post-treatment occlusal stability or instability. The overall mean-weighted pre-treatment, post-treatment and follow-up PAR scores were 25.5, 3.0 and 7.0, respectively. There was an 85.6 per cent decrease with treatment in the overall mean-weighted PAR score. This was followed by a 15.2 per cent increase in that overall mean during the follow-up period. In this introductory study, neither the PAR score at the end of active treatment, nor the amounts of occlusal change occurring during or after active treatment, were found to be predictive of the amount of post-treatment occlusal change.

Adolescent↗
PubMedDate not supplied

C4 dispatches.

Explore the source record for details and available documents.

Follow-Up Studies↗
PubMed2001

Rapid detection and differentiation of Newcastle disease virus isolates by a triple one-step RT-PCR.

A triple one-step RT-PCR was developed to screen and differentiate virulent from avirulent Newcastle disease virus (NDV) isolates. Three sets of oligonucleotides were designed, each specific for amplifying NDV fusion protein gene-specific RNA from virulent, avirulent or all isolates respectively. The sensitivity of one-step RT-PCR was determined using viral RNA extracted from serially diluted NDV-infected allantoic fluid and found to be 10(-5) HA units. Application of one-step RT-PCR to various NDV samples, including wild-type virulent isolates and avirulent vaccine strains, demonstrated the potential for rapid identification (3-4 h) of NDV isolates as well as the differentiation of virulent from avirulent strains.

Animals↗