Chronische Strahlenfolgen an den Zahnhartgeweben (“Strahlenkaries”) Klassifikation und Behandlungsansätze

Grötz, K. A.; Riesenbeck, D.; Brahm, R; Seegenschmiedt, M. Heinrich; Al‐Nawas, Bilal; Dörr, Wolfgang; Kutzner, J; Willich, Normann; Thelen, M.; Wagner, Wilfried

doi:10.1007/pl00002390

Cited by 27 publications

(6 citation statements)

References 15 publications

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“…One included study reported a decrease in the enamel microhardness in a region of the DEJ following in vivo and in vitro irradiation (18). In addition, another study found a significant increase in elastic modulus after simulated oral cancer radiotherapy at the evaluated sites in enamel and dentin, near the DEJ region (17); this was in agreement with two in vitro studies (26,27) that were not included, but in discordance with two other authors that did not observe any dental microhardness changes after in vitro irradiation (12,28). This divergence in the literature might be explained by the fact that the aforementioned studies did not evaluate the specific region of the DEJ.…”

Section: Discussionsupporting

confidence: 67%

The impact of head and neck radiotherapy on the dentine-enamel junction: a systematic review

Fonseca

Troconis²,

Palmier³

et al. 2020

Med Oral

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Background: Radiotherapy is widely used in contemporary head and neck cancer treatment protocols. The ability of head and neck radiotherapy (HNRT) to cause direct radiogenic destruction to the teeth is one of the most controversial topics in the field of oral oncology. Therefore, this systematic review aimed to investigate ionising radiation as an independent factor for physical and chemical changes on the dentine-enamel junction (DEJ), a pivotal dental topography for the onset and progression of radiation-related caries (RRC) and enamel delamination. Material and Methods: Systematic searches were conducted on three databases: Scopus, MEDLINE (Via PubMed) and Embase (Elsevier). Laboratory studies evaluating the effects of simulated or in vivo HNRT on the DEJ were included. The GRADE tool adapted for in vitro studies was used to assess the methodological quality. Results: Of the 154 initially selected studies, eight met the inclusion criteria, from which five studies were graded as high quality of evidence, two studies were graded as moderate quality and one as low quality. Two studies did

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Section: Discussionsupporting

confidence: 67%

The impact of head and neck radiotherapy on the dentine-enamel junction: a systematic review

Fonseca

Troconis²,

Palmier³

et al. 2020

Med Oral

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“…While there is lack of data published on this topic, evidences suggest a conservative approach using adhesive restorations [ 8 ]. Haveman and Redding have shown that conventional glass-ionomer cement (GIC) had poorer results than the resin-modified glass-ionomer cements (RMGICs) and composite fillings in patients treated by radiotherapy [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

Tensile Bond Strengths of Two Adhesives on Irradiated and Nonirradiated Human Dentin

Bernard

Villat

Abouelleil

et al. 2015

BioMed Research International

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The aim of this study was to assess the effect of radiotherapy on bond efficiency of two different adhesive systems using tensile bond strength test. Twenty extracted teeth after radiotherapy and twenty nonirradiated extracted teeth were used. The irradiation was applied in vivo to a minimal dose of 50 Gy. The specimens of each group were randomly assigned to two subgroups to test two different adhesive systems. A three-step/etch-and-rinse adhesive system (Optibond FL) and a two-steps/self-etch adhesive system (Optibond XTR) were used. Composite buildups were performed with a nanohybrid composite (Herculite XTR). All specimens were submitted to thermocycling ageing (10000 cycles). The specimens were sectioned in 1 mm2 sticks. Microtensile bond strength tests were measured. Nonparametric statistical analyses were performed due to nonnormality of data. Optibond XTR on irradiated and nonirradiated teeth did not show any significant differences. However, Optibond FL bond strength was more effective on nonirradiated teeth than on irradiated teeth. Within the limitations of an in vitro study, it can be concluded that radiotherapy had a significant detrimental effect on bond strength to human dentin. However, it seems that adhesive choice could be adapted to the substrata. According to the present study, the two-steps/self-etch (Optibond XTR) adhesive system tested could be more effective on irradiated dentin compared to three-steps/etch-and-rinse adhesive system (Optibond FL).

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“…Radio-xerostomia and radiation caries represent the major chronic side effects of head and neck irradiation [18]. Both the high consumption of short chain carbohydrates and reduced oral hygiene are known as promoting factors for radiation caries [19].…”

Section: Discussionmentioning

confidence: 99%

Prospective study of the long term change of the oral flora after radiation therapy

Al‐Nawas¹,

Grötz²

2005

Support Care Cancer

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Chronische Strahlenfolgen an den Zahnhartgeweben (“Strahlenkaries”) Klassifikation und Behandlungsansätze

Cited by 27 publications

References 15 publications

The impact of head and neck radiotherapy on the dentine-enamel junction: a systematic review

The impact of head and neck radiotherapy on the dentine-enamel junction: a systematic review

Tensile Bond Strengths of Two Adhesives on Irradiated and Nonirradiated Human Dentin

Prospective study of the long term change of the oral flora after radiation therapy

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