Late Effects of Head and Neck Radiotherapy on Pulp Vitality Assessed by Pulse Oximetry

Kataoka, Simony Hidée Hamoy; Setzer, Frank C.; Gondim-Junior, Eudes; Fregnani, Eduardo Rodrigues; Moraes, Claudia Joffily P.; Pessoa, Oscar Facíola; Gavini, Giulio; Caldeira, Celso Luiz

doi:10.1016/j.joen.2016.02.016

Cited by 24 publications

(80 citation statements)

References 26 publications

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“…Clinically, this reduction did not result in changes in pulp status, as SaO 2 levels soon returned to normal levels (85%) (23). This same finding was reported in a previous study (24), in which the authors assessed the effect of intraoral radiation on pulp SaO 2 levels in the long term and concluded that small changes to pulpal microcirculation were temporary.…”

Section: Discussionsupporting

confidence: 88%

Effect of At-Home Bleaching on Oxygen Saturation Levels in the Dental Pulp of Maxillary Central Incisors

et al. 2018

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The present study assessed oxygen saturation (SaO2) levels before, during, and after at-home bleaching treatment in the pulps of healthy maxillary central incisors. SaO2 levels were measured in 136 healthy maxillary central incisors using a pulse oximeter. The bleaching protocol consisted of 10% carbamide peroxide gel placed in individual trays and used for four hours daily for 14 days. SaO2 levels were assessed before bleaching (T0), immediately after the first session (T1), on the 7th day of treatment (T2), on the 15th day (the day following the last session) (T3), and 30 days after completion of the bleaching protocol (T4). Data were statistically analyzed using generalized estimating equations (GEE), Student’s t test (p<0.05) and Pearson’s correlation. Mean pulp SaO2 levels were 85.1% at T0, 84.9% at T1, 84.7% at T2, 84.3% at T3, and 85.0% at T4. Gradual reductions in SaO2 levels were observed, with significant differences (p<0.001) during the course of home bleaching treatment. However, 30 days after the end of the bleaching protocol, SaO2 levels returned to baseline levels. Home bleaching caused a reversible transient decrease in SaO2 levels in the pulps.

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Section: Discussionsupporting

confidence: 88%

Effect of At-Home Bleaching on Oxygen Saturation Levels in the Dental Pulp of Maxillary Central Incisors

et al. 2018

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“…In the included articles, the age of the patients were from 40-74 years old without mentioning the prevalence of patient's sex in 4 studies, one study (7) didn't mention the sex included in the study, only one study (6) showed the prevalence of male patients. The races of population in this study were in Indian (7) and Brazilian people (3,4,6,8). Thus, that finding recommends doing clinical studies on more races of population.…”

Section: Discussion:-mentioning

confidence: 49%

“…Also results showed that RT decreased the number of teeth responding to pulp sensitivity or vitality testing after doses greater than 30-35 Gy. Also one study done by Kataoka et al 2016 (8) found that percent of pulp oxygenation level to be within normal limits 4-6 years after RT. This suggests that RT may not have a long-term influence on pulp vitality, and reported short-term changes in pulpal microcirculation because of RT may be temporary.…”

Section: Discussion:-mentioning

confidence: 95%

“…But only one study by Garg et al 2015 (7) showed that no tooth (0%) responded to pulp sensitivity testing after 4-5 months of RT. It must be put in mind that this study ( 7) was performed only on maxillay and posterior teeth posterior teeth, while the other studies (3,4,6,8) included only maxillary and mandibular anterior teeth, and one study (5) included maxillary and mandibular teeth without mentioning the type. The difference in the results of the study done by Garg et al 2015 (7) and the other studies (3,4,6,8) could be explained due to the difference in the type of teeth included; The enamel and dentin thickness and number of roots differ between the anterior and posterior teeth (15) , which 560 could affect the pulp response to sensitivity tests (16), also the radiation exposure affect on the pulp differs according to the teeth type.…”

Section: Discussion:-mentioning

confidence: 99%

“…However, little is known about the direct effects of radiation on pulp status, only a few previous studies attempted to investigate the direct effects of radiation on the dental pulp, some of which revealed significant loss of pulp vitality after RT (3,(5)(6)(7). Others revealed no significant loss of pulp vitality after RT (4,8). Hence, there is great diversity of results when it comes to the ability of radiation to directly affect the dental pulp components and to further impair pulp vascularization and innervation, leading to clinically detectable teeth sensitivity changes to thermal and electrical stimulus, it also causes changes in the levels of oxygen saturation (3,(5)(6)(7).…”

Section: Issn: 2320-5407mentioning

confidence: 99%

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