Premature Loss Of Deciduous Molars Research Articles

Porównanie częstości występowania poszczególnych wad zgryzu u dzieci z fizjologiczną wymianą uzębienia i dzieci z przedwczesną utratą trzonowych zębów mlecznych, które zgłaszały się do leczenia ortodontycznego

ENWEndNote BIBJabRef, Mendeley RISPapers, Reference Manager, RefWorks, Zotero AMA Wojtaszek-Lis JM, Laskowska M, Lis K, Zadurska M. Comparison of the incidence of individual malocclusions in children with physiological replacement of teeth and children with premature loss of deciduous molars who reported for orthodontic treatment. Forum Ortodontyczne / Orthodontic Forum. 2021;17(3):195-204. doi:10.5114/for.2021.110503. APA Wojtaszek-Lis, J. M., Laskowska, M., Lis, K., & Zadurska, M. (2021). Comparison of the incidence of individual malocclusions in children with physiological replacement of teeth and children with premature loss of deciduous molars who reported for orthodontic treatment. Forum Ortodontyczne / Orthodontic Forum, 17(3), 195-204. https://doi.org/10.5114/for.2021.110503 Chicago Wojtaszek-Lis, Julita M, Małgorzata Laskowska, Krzysztof Lis, and Małgorzata Zadurska. 2021. "Comparison of the incidence of individual malocclusions in children with physiological replacement of teeth and children with premature loss of deciduous molars who reported for orthodontic treatment". Forum Ortodontyczne / Orthodontic Forum 17 (3): 195-204. doi:10.5114/for.2021.110503. Harvard Wojtaszek-Lis, J., Laskowska, M., Lis, K., and Zadurska, M. (2021). Comparison of the incidence of individual malocclusions in children with physiological replacement of teeth and children with premature loss of deciduous molars who reported for orthodontic treatment. Forum Ortodontyczne / Orthodontic Forum, 17(3), pp.195-204. https://doi.org/10.5114/for.2021.110503 MLA Wojtaszek-Lis, Julita et al. "Comparison of the incidence of individual malocclusions in children with physiological replacement of teeth and children with premature loss of deciduous molars who reported for orthodontic treatment." Forum Ortodontyczne / Orthodontic Forum, vol. 17, no. 3, 2021, pp. 195-204. doi:10.5114/for.2021.110503. Vancouver Wojtaszek-Lis J, Laskowska M, Lis K, Zadurska M. Comparison of the incidence of individual malocclusions in children with physiological replacement of teeth and children with premature loss of deciduous molars who reported for orthodontic treatment. Forum Ortodontyczne / Orthodontic Forum. 2021;17(3):195-204. doi:10.5114/for.2021.110503.

Dental Arch Dimension Changes Following Prematurely Extracted Deciduous Molars

The aim was to assess the vertical and horizontal dimensional changes in themaxillary and mandibular dental arches after the unilateral premature loss ofdeciduous molars. Methods: The sample consist of 100 child between 8-9 years of agewith unilateral loss of first or second deciduous molars, either in the maxillary ormandibular arches, Study casts were made and measurements conducted on the Autosketch program on the computer , The data obtained was subjected to statisticalanalysis. The Results of the study showed that when comparing the mean values ofthe loss groups with the control group a statistically significant difference in themaxillary (A) distance after the premature loss of first or second deciduous molars,however a high significant difference statistically in the (ML) distance recorded afterthe premature loss of maxillary second deciduous molar ,while in the mandibular archa statistically high significant difference observed in most of the vertical andhorizontal distances following premature loss of second deciduous molar.Conclusions: The major effect on the dental arch length and width following thepremature loss of the deciduous molars, indicating the need for fitting the spacemaintainers' appliances as soon as the extraction is the final decision to the dentist.

Space changes after premature loss of deciduous molars among Brazilian children

The use of space maintainers after the premature loss of deciduous molars is routine in pediatric dentistry. However, there is a need for evidence offering a better scientific basis for prescribing these appliances. In this study, we aimed to assess dimensional changes in the dental arches after the premature loss of deciduous molars. A sample of 55 children between 6 and 9 years of age with unilateral loss of either first or second molars was followed for 10 months by clinical examination, cast analysis, and radiographic analysis. The space in the extraction site, arch length, and hemi-perimeter of the extraction and control sides were measured. Intraexaminer agreement was high (0.990). The data were analyzed by using the F test (analysis of variance), Bonferroni test, least significant difference, and Student t test. Only the group of children with premature loss of the mandibular second deciduous molars exhibited significant dimensional alterations during the follow-up. The findings emphasize a need for the judicious indication for space maintainers. The major effect on the dental arches occurred in the first 3 months after the extraction of the deciduous molars, indicating that these appliances should be fitted during this period.

Influence of tooth-to-denture-base discrepancy on space closure following premature loss of deciduous teeth

Influence of tooth-to-denture-base discrepancy on so-called physiologic migration of the first molar was studied on serial dental casts of 116 boys and girls, obtained through a dental health program for school children in an area in which there was no dentist. The alteration of spaces following premature loss of deciduous molars was examined comparing the anterior to posterior discrepancies between tooth and denture base. Modes of space alteration showed positive correlation with the size of the discrepancy, especially in the mandibular dental arches. The space deficiency in the posterior region seemed to have a positive effect on the mesial migration of the first molar. Mesial migration of the first molar seems to be pathologic rather than physiologic and is strongly affected by tooth-to-denture-base discrepancies. Space maintenance does not seem to be useful, because it is not necessary in minimum discrepancy cases and is not effective in severe discrepancy cases.

A Comparative Analysis of the Curve of Spee (Lateral aspect) before and after Orthodontic Treatment

The present study dealt with the curves of Spee, respective incisal cusp ridge distances and degrees of overbite before and after a dynamic treatment as well as after retention of a selected number of orthodontic patients.As a result, the following conclusions were arrived at : 1. On preoperative 1-6 o.p., the largest curves were observed with the maxillary right and left first premolars and with the mandibular right and left second premolars.On 1-7 o.p., the deepest curves were observed with the right and left second premolars, the pattern being similar to the maxilla and mandible. The deepest curve at the second premolars is in agreement with the reports of previous investigators.In some cases in whom the pronounced curves were formed, distal inclination of the maxillary first and second molars was noteworthy, being mesially positioned. Because of a pronounced mesial inclination of the mandibular together with premature loss of deciduous molars at the successional replacement period, enough space had not been provided for the second premolars which are much later in their eruption. For this reason, it is thought, the occlusal position tended to be lower.2. On postoperative 1-6 o.p., a slight reverse mode resembling almost at raight line was observed with the maxilla, while a shallow curve was observed with the mandible.On 1-7 o.p., on the other hand, a smooth and shallow curve was observed with the maxillary right and left first molars (disto-buccal cusps) and the mandibular right and left first molars (mesio-buccal cusps).Since there was confirmed a tendency that the occlusal plane would become deeper after an orthodontic treatment, the treatment policy was adopted to render it either even or reverse at the finish.3. On 1-6 o.p. after retention, a slight curve was observed similar to that of posttreatment cases with a somewhat noticeable trend, this fact being in common to the maxilla and mandible.On 1-7 o.p. after retention, the findings were similar to those of postoperative cases but, as compared with the maxilla, the curve became somewhat deeper in the mandible.It was not possible to establish definitely whether this deepening of curve in the mandible was due to relapse, natural result by reason of treatment or occlusal movement on the part of patients.4. When the curve of Spee in normal occlusal subjects was compared with those of orthodontic patients both after dynamic treatment and retention, the latter were found to be either reverse or straight line. In the former, the curve was smooth and slight. Except for the lateral incisal region, the curve of Spee in the mandible was similar to that of normal occlusal subjects but with a tendency of being somewhat flat or even.Similarly, on 1-7 o.p., the findings of postoperative and after retention curves were nearly the same, and this is particularly true of the mandible.5. The degrees of overbite were 59.2% preoperatively, 42.6% postoperatively and 41.4% after retention.As shown by these changes, a reducing tendency took place in proportion to an improved occlusion.6. The following values were measured regarding intervals or distances of the incisal cusp ridges. Preoperative Postoperative After retention Maxilla 131.8 mm 113.2 mm 111.1 mm Mandible 115.4 mm 199.2% 98.8 mmIt may be inferred that these changes were brought about by the extraction of first premolars and closure 'adjustment of the band space.

The influence of premature loss of deciduous molars and the eruption of their successors: C. G. Sleichter. Angle Orthodontist 33: 279–283, October, 1963

The influence of premature loss of deciduous molars and the eruption of their successors: C. G. Sleichter. Angle Orthodontist 33: 279–283, October, 1963