The evaluation of spontaneous space closure after the extraction of first permanent molars

Teo, Terry Kuo-Yih; Ashley, Paul; Parekh, Susan; Noar, Joseph

doi:10.1007/s40368-013-0042-7

Cited by 51 publications

(79 citation statements)

References 6 publications

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“…Teo et al [18] evaluated spontaneous space closure after FPM extraction in children aged 7–13 years. They classified space closure into five categories.…”

Section: Resultsmentioning

confidence: 99%

“…A meta-analysis was performed for the three studies [14, 16, 18] that reported space closure in both arches separately to compare the frequency of spontaneous space closure of the SPM in the maxilla with that in the mandible. Space closure was more likely to occur in the maxilla than in the mandible, but the difference was not statistically significant (odds ratio 2.06, 95% confidence interval 0.46–9.28; P = 0.35).…”

Section: Resultsmentioning

confidence: 99%

“…The heterogeneity between the three studies was moderate (I 2 = 72%) and statistically significant ( P = 0.03). One study found that space closure was significantly greater in the maxilla than in the mandible (94% and 66%, respectively; P = 0.0001) [18]. The second study also found that space closure was greater in the maxilla than in the mandible (81.6% and 75%, respectively) but the difference was not statistically significant ( P = 0.518) [14].…”

Section: Resultsmentioning

confidence: 99%

“…Two of the included articles [17, 18] suggested that the ideal time for FPM extraction is when development is at Demerjian stage E [23]. The stages of SPM development according to Demirjian are: “Stage D crown developed, Stage E early bifurcation, Stage F late bifurcation, and Stage G root development almost complete” [18].…”

Section: Resultsmentioning

confidence: 99%

“…The stages of SPM development according to Demirjian are: “Stage D crown developed, Stage E early bifurcation, Stage F late bifurcation, and Stage G root development almost complete” [18]. In addition, one of the articles examined spontaneous space closure for SPMs that were developed to stage E or F. The spontaneous space closure rate was found to be 58% when the SPM was at stage E and 56.5% when it was at stage F. However, the difference was not statistically significant ( P = 1.00) [17].…”

Section: Resultsmentioning

confidence: 99%

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Consequences of early extraction of compromised first permanent molar: a systematic review

et al. 2018

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BackgroundThe aim of this study was to systematically review the literature to determine the sequelae of early extraction of compromised first permanent molars (FPMs) with regard to the skeletal and dental development of 5- to 15-year-old children. Meta-analysis was conducted when applicable.MethodsOur research protocol included a search strategy, inclusion/exclusion criteria, and a data extraction plan. The search engines used were PubMed, Scopus, and Science Direct. Study selection was performed independently by three reviewers. Articles published from 1960 to 2017 were reviewed based on inclusion and exclusion criteria. Meta-analysis was performed to compare space closure between upper and lower arches.ResultsEleven studies fulfilled the inclusion criteria. The consequences were decrease in post extraction space, accelerated development and eruption of second permanents molars (SPMs) and third molars, a decrease in caries and/or fillings on the proximal surfaces of adjacent teeth, lingual tipping and retrusion of incisors, and counter clockwise rotation of the occlusal plane.ConclusionThere were several consequences of early extraction of FPMs, which were related to skeletal and dental development. Our systematic review suggests that comprehensive evaluation of the compromised FPMs should be performed before planning an extraction. The ideal time for FPM extraction is when the SPM is at the early bifurcation stage in order to achieve complete closure of the extraction space by the SPM. Benefits should be weighed over the risks to decrease the risk of unfavorable outcomes as much as possible. However, due to the limited evidence on the outcomes and variables that influence them, high-quality prospective studies are needed.Electronic supplementary materialThe online version of this article (10.1186/s12903-018-0516-4) contains supplementary material, which is available to authorized users.

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“…Teo et al [18] evaluated spontaneous space closure after FPM extraction in children aged 7–13 years. They classified space closure into five categories.…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%