Retrospektive Datenerhebung zur Lückenhalterversorgung von Kindern und Jugendlichen
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Philipps-Universität Marburg
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Abstract
Aim: The aim of this retrospective data collection was to examine various parameters for significance with regard to the survival of a removable space maintainer appliance.
With this objective, patient-specific parameters such as gender, dmft value, oral hygiene and wearing time were to be tested for significance using suitable statistical methods. To date, there are no comparable studies in the literature that examine the clinical relevance of these parameters for removable space maintainers.
Material and methods: The data for the retrospective evaluation were collected from index card entries from the Department of Pediatric Dentistry at the Center for Oral and Maxillofacial Medicine at the Philipps University of Marburg during the observation period 2010 - 2020. Various parameters were recorded and their influence on success or failure was examined. The survival rate was analyzed according to the Kaplan-Meier estimator and the log-rank test was used for group comparisons. The significance level was set at p = 0.05. Space maintenance therapy was considered as success if no changes or repairs had to be made to the plate appliance during the entire therapy period. In addition to the total loss of the appliance, all necessary changes and irregular wearing were considered failures.
Results: In total, data were collected from 62 patients with 75 space maintenance plate appliances in the observation period between 2010 - 2020. The patients had an age range between 5.4 and 18.2 years for the date of first wearing the space maintainer appliance. The mean age was 8.9 years. On average, a dmft value of 4.7 was determined for the patients examined. The mean survival time for all space maintainer appliances was 30.5 months. In 33 patients, there were no complications during the entire wearing period, meaning that the space maintainer therapy was successful in 53.2% of all patients examined. With good cooperation, an average survival probability of 34.6 months was achieved. This figure fell significantly with poor cooperation to just 16.5 months. Patients with good oral hygiene had a 75% success rate. In patients with poor oral hygiene, this fell to just 22.2%. Oral hygiene therefore also has a significant influence (p = 0.0125) on the successful treatment of a removable space maintainer appliance. A fracture defect was described in a total of 18 cases (p = 0.0320). This means that fractures of the space maintainer appliances were responsible for 62.0% of all failures. The parameters gender, number of visits, dental history, DMFT index, general medical history, maxillary or mandibular appliance and total loss had no significant influence on the survival of the space maintainer appliances in this study.
Conclusion: The retrospective study confirms that the most important parameters for successful treatment with removable space maintainers are the duration of wear, oral hygiene and patient cooperation. In addition to recurring follow-up checks, good cooperation also includes regular wearing and oral hygiene. The caries experience (dmft) is also highly significant with regard to successful treatment. This means that a good or trusting dentist-patient relationship and the motivation to maintain adequate oral hygiene can contribute significantly to the success of treatment. However, the small number of comparable studies in the field of removable space maintainers also shows the need for further research.
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Created: 2025Issued: 2025-04-03Updated: 2025-04-03
Faculty
Medizin
Publisher
Philipps-Universität Marburg
Language
ger
Data types
DoctoralThesis
Keywords
space maintainer
DFG-subjects
PlatzhalterLückenhalter
DDC-Numbers
610
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Liptow-Pieper, Nikolai: Retrospektive Datenerhebung zur Lückenhalterversorgung von Kindern und Jugendlichen. : Philipps-Universität Marburg 2025-04-03. DOI: https://doi.org/10.17192/z2025.0172.
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This item has been published with the following license: In Copyright