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ARCH

Autoregressive Conditional Heteroskedasticity

A statistical measure of the average error between a best fit line and actual data that uses past data to predict future performance. General Autoaggressive Conditional Heteroskedasticity is the most common way of doing this. See also: Fractal Distribution.
References in periodicals archive ?
Evaluation of total reaction forces showed that with lowering the simulated occlusal interference total reaction forces of maxillary dental arch gradually decreased in axis X and increased in axis Y, while their effects in axis Z changed unevenly; this was caused by significant change of magnitude and direction of lateral force arisen in teeth 13 when simulated occlusal interference was of height 0.
All dental arch measurement were made directly from the dental cast manually using a digital sliding caliper (Chenqdu tenggiang industry co.
Another problem that may arise in connection with the eruption of the permanent teeth is ectopic eruption, which might result in a deviation of the tooth in the dental arch and difficulty in function of the teeth.
The effects of infraocclusion Part III: Dental arch length and midline.
Loss of dental arch circumference due to premature loss of primary molars is a common presentation in the primary and mixed dentitions.
An alginate impression is taken of the patient's affected dental arch, either during the extraction visit or at a later appointment after healing has occurred; a working model is produced.