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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 ?
Pregled ispitanika A [A.sub.1] Subject sample Subject subgroup Uzorak with the ispitanika extractions in the maxillary arch Podgrupa ispitanika sa ekstrakcijama u maksilarnom luku Early performed extractions "e" 90 32 Rano izvedene ekstrakcije "e" Late performed extractions "1" 95 33 Kasno izvedene ekstrakcije "l" Tota/Ukupno 185 65 [A.sub.2] Subject subgroup with the extractions in the mandibular arch Podgrupa ispitanika sa ekstrakcijama u mandibularnom luku Early performed extractions "e" 58 Rano izvedene ekstrakcije "e" Late performed extractions "1" 62 Kasno izvedene ekstrakcije "l" Tota/Ukupno 120 Table 2.
Also, 98.8% (n = 33) of the supernumerary teeth were found to be in the maxillary arch. This value is high as compared to Salcido-Garcia et al.
In order to assist in the diagnosis and treatment of a tightly attached upper lip, a simple classification has been developed [Kotlow, 2004c] based upon the position of the lip attachment to the maxillary arch's soft tissue
All had maxillary arch 2 x 4 appliances, some combined with headgear, as needed.
Preoperative panoramic X-ray shows; in maxillary arch retained deciduous teeth are (FDI numbering) 54, 53 and 65, erupting permanent teeth are 17, 13, 25 and 27, maxillary arch also shows missing both upper lateral incisors (12, 22) and third molar (18,28).
Intraoral examination revealed Kennedy Class I Division 1 edentulism in maxillary arch and mandibular arch [Figure 1].
On intraoral examination, fourteen teeth were present in maxillary arch (Figure 4).
The stress-bearing areas in the maxillary arch are the horizontal plates of the palatine bone, and the relieving areas are midpalatine raphe and the incisive papilla.
The treatment plan of the maxillary arch involved extraction of all teeth.
Arch width: The maxillary arch width was significantly less in the affected group compared with healthy controls in all dimensions, P values were less than 0.03 (table 1).
(1,2) These individuals also present the long face or adenoid facies syndrome, showing an elongation of the inferior facial height, slightly open lips, narrow maxillary arch, deep palate and Class II malocclusion.
In the maxillary arch, protrusion of incisors was planned to align the anterior teeth and correct cross-bite.