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Copyright of Acta Stomatologica Croatica is the property of Acta Stomatologica Croatica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Stomatologica Croatica is the property of Acta Stomatologica Croatica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Stomatologica Croatica is the property of Acta Stomatologica Croatica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Stomatologica Croatica is the property of Acta Stomatologica Croatica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Stomatologica Croatica is the property of Acta Stomatologica Croatica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Acta Stomatologica Croatica is the property of Acta Stomatologica Croatica and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Archives of Industrial Hygiene & Toxicology / Arhiv za Higijenu Rada I Toksikologiju is the property of Sciendo and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Despite extensive research on tooth eruption, understanding this complex biological process remains unclear. Variation in the timing of eruption for primary teeth is under strong genetic control, but there is also a significant contribution from external factors. The aim of this study was to evaluate the influence of preterm birth, birth weight and length, and feeding practices during the first six months of life on the timing of eruption of the first primary tooth. Data on pregnancy duration, birth weight and length, feeding practice, time of eruption and first erupted primary tooth were collected by electronic questionnaires. The study included 409 parents and 592 children of both genders. The sample was divided into two groups according to pregnancy duration (<38 weeks and ⩾38 weeks), three groups according to feeding practice (exclusively breastfed, exclusively bottle fed, and a combination of breast feeding and bottle feeding), three groups by birth length (<50, 50-53, >53 cm), and four groups by birth weight (<1500, 1500-2500, 2501-3500,>3500 g). Data were analyzed considering chronological and corrected age - which is the gestational age plus the infant's chronological age at the month of eruption of the first primary tooth. The mean time of first primary tooth eruption was 7.55 ± 2.67 months when chronological age was considered. The first erupted tooth in most cases was a lower incisor (82.33%). There was a statistically significant difference in the timing of first tooth eruption between preterm and full-term groups when chronological age was considered (P<0.005). However, no difference was found when age was corrected. The age of eruption of the first tooth differed significantly when feeding, weight, and length groups (P<0. 05) were taken into account. Age calculation rather than retarded dental development may explain the later eruption of the first primary tooth in low weight, bottle fed, preterm infants. [ABSTRACT FROM AUTHOR]

Most of the literature states that slide from centric relation occlusion (OCR) to intercuspal position (ICP) occur at approximately 90% of people, and on average is 1 mm long. The purpose of this study was to test the possible differences in OCR-ICP slide between different Angle classes of occlusion. Study included 98 participants (58 class I, 10 class II/1, 14 class II/2, 16 class III). Each participant gave written informed consent, which was approved by the Ethical Committee of the School of Dentistry, University of Zagreb. Recordings were obtained by the electronic ultrasound measuring device (Arcus Digma II, Kavo, Germany), using module "EPA-Electronic Position Analysis". Reference position was ICP, while OCR was achieved with training participants to move mandible posteriorly (no guidance). Data were transferred to the computer, and processed and analyzed with device's software. For every participant, distance between ICP and OCR was measured (x-anteroposterior, y-vertical, z-transversal values). Analysis of variance, followed by Newman-Keuls test was applied. Analysis of variance showed significant differences in vertical values of OCR-ICP slide (p=0.045). Newman-Keuls test for vertical distances between tested groups showed significant difference between II/2 and II/1 (p=0.049), and between II/2 and I (p=0.043). Out of 98 participants, none showed coincidence of OCR and ICP position. Unlike other studies, Angle class II/2 showed smaller movements in vertical direction, in comparison with Angle class I and II/1. Since function and morphology of the TMJ are closely related, it is possible that smaller OCR-ICP slide in vertical direction, as expression of anatomy/function, happens at Angle class II/2. This could be explained by „locked occlusion“, and posterior condylar position in Angle class II/2 advocated by some authors. In concordance with novel studies, coincidence of OCR and ICP position is less than 10 %. [ABSTRACT FROM AUTHOR]

Turner syndrome occurs in phenotypic females with complete or partial absence of X-chromosome. The leading symptom is short stature, while numerous but mild stigmata manifest in the craniofacial region. Turner syndrome patients are commonly treated with growth hormone to improve their final height. The aim of this study was to investigate the influence of long-term growth hormone treatment on craniofacial morphology in patients with Turner syndrome. Cephalometric analysis was performed on 13 lateral cephalograms of patients with 45,X karyotype and the average age of 17.3 years. In all patients growth hormone has been administrated for at least two years. The control group consisted of 13 cephalograms of Turner syndrome patients naïve to growth hormone treatment, matched to study group by age and karyotype. Standard deviation scores were calculated to evaluate the level of growth hormone influence. In patients receiving growth hormone most of linear measurements were significantly larger compared to control group. Growth hormone therapy mostly influenced posterior face height, mandibular ramus height, total mandibular length, anterior face height and maxillary length. All these values were more than two standard deviations larger compared to controls. Cranial base was significantly elongated only in the anterior part. While the increase in linear measurements was evident, angular measurements and facial height ratio did not show statistically significant difference. Results of this study suggest that long-term growth hormone therapy has positive influence on growth and development of craniofacial complex in Turner syndrome patients, with the greatest impact on posterior facial height and mandibular ramus. [ABSTRACT FROM AUTHOR]

The objective was to determine the quantitative relationship between the condyle and disc position in the glenoid fossa between two different slices of the same temporomandibular joints (TMJs) with partial anterior disc displacement (DD). The study was conducted on 40 patients with DD of TMJs (mean age, 35.5 years). The clinical diagnosis of DD was confirmed by magnetic resonance imaging. Joints from the patient groups were analyzed according to the laterality and depending on disc displacement (a total of 80 joints). Comparison was made between two different slices of 9 joints with partial DD with reduction: partial DD was analyzed in the representative centrolateral or centromedial parasagittal slice of the TMJ (TMJ partial DD--slice DD). The contralateral slice of the same joint was without DD (TMJ partial DD--slice NDD). The analysis also included 34 healthy joints without DD (TMJ NDD) of the same patients. The position of the condyle and disc was calculated using the Kurita et al. method on the parasagittal view of the TMJ. A statistically significant difference was recorded for different slices of the same TMJs with partial DD (TMJ partial DD--slice DD and TMJ partial DD--slice NDD) (p < 0.01), but no difference was found in condyle positions depending on the existence of partial DD (p > 0.05). The compared values between slice TMJ partial DD--slice NDD with the group of TMJ NDD showed no significant difference in either disc position or condyle position (p > 0.05). There were differences of disc position in various slices of the same joint with visually confirmed partial DD. The dorsocranial condyle position could not indicate partial anterior DD.