Antepartum Dental Radiography and Infant Low Birth Weight

Hujoel, Philippe P.; Bollen, Anne Marie; Noonan, Carolyn; Aguila, Michael A. Del

doi:10.1097/01.ogx.0000141201.04017.ca

Cited by 31 publications

(41 citation statements)

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“…The possibility of a pituitary or thyroid link in low birth weight infants owing to maternal exposures to low levels of dental X-rays justifies the scrutiny of exposures in maxillofacial imaging. 14 To provide a further perspective, a full mouth radiographical examination using rectangular collimation at E-or F-speed film would lead to patient exposure to maximum equivalent dose of 25 mSv. A direct digital panoramic radiograph leads to an equivalent dose of 6.2 mSv to the patient, using the International Commission on Radiation Protection (ICRP) 1990 tissue weights.…”

Section: Discussionmentioning

confidence: 99%

Early victims of X-rays: a tribute and current perception

Sansare¹,

Khanna²,

Karjodkar³

2011

Dentomaxillofacial Radiology

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X-rays were discovered in 1895 and since then much has been written about Wilhelm Roentgen and the events surrounding the discovery. However, there have been only scattered references in the literature about the early workers who dedicated their life, and death, to X-rays. Radiology has come of age since then. Large exposure times have been reduced to milliseconds and there has been a change from analogue to digital. The advent of new and rapidly developing modalities and the ubiquitous presence of cone beam CT (CBCT) highlight the need to remember the early victims of X-rays, especially with the lack of universal guidelines for taking a CBCT scan. The aim of this article is to alert the oral radiologist to exposing patients irrespective of need, and to pay respect to the victims on the 116th anniversary of the discovery of X-rays.

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Section: Discussionmentioning

confidence: 99%

Early victims of X-rays: a tribute and current perception

Sansare¹,

Khanna²,

Karjodkar³

2011

Dentomaxillofacial Radiology

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“…13 Fetal doses resulting from radiological examination of the mother's skull, head, neck, chest and extremities are extremely low (< 0.01 rad) because of the relatively low maternal radiation dose, beam direction and distance between the primary field and the fetus. 1 A recent study claiming an association between dental radiography in pregnancy and low birth weight 14 has been criticized for lack of biological plausibility. 15 A publication by the International Commission of Radiological Protection reviewed experimental data about the in utero effect of radiation in animals and humans.…”

Section: Key Pointsmentioning

confidence: 99%

"Doctor, will that x-ray harm my unborn child?"

Ratnapalan¹,

Bentur²,

Koren³

2008

Canadian Medical Association Journal

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“…6 Since women may not always be aware of their pregnancy status, there is a need to protect the thyroid of women of reproductive age.…”

Section: Discussionmentioning

confidence: 99%

“…The relationship between dental radiation exposure during pregnancy and low birthweight infants, even when the fetus is not exposed, has been established in a case-control study by Hujoel et al 6 However, exposure to which particular organ in the dental radiation field leads to low birthweight infants remains unanswered. Epidemiological 7,8 and experimental animal studies 9 indicate that exposure to the thyroid gland may be responsible for such an association.…”

Section: Introductionmentioning

confidence: 99%

Utility of thyroid collars in cephalometric radiography

Sansare¹,

Khanna²,

Karjodkar³

2011

Dentomaxillofacial Radiology

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Objective: A study was carried out to investigate the rationale that use of a thyroid collar (TC) in cephalometric radiography hampers the diagnostic and descriptive quality of lateral cephalogram. Methods: A randomized observer blinded study was designed. The study consisted of two groups. The first group data were retrieved from the oral radiology archival system having lateral cephalogram without a TC. The second group was selected from the oral radiology department of patients where lateral cephalogram was taken using a TC. Lateral cephalogram was taken on direct digital system, the Kodak 9000 unit (Eastman Kodak, Rochester, NY). 2 observers blinded about the aim of the study were appointed to identify 15 sets of landmarks on the lateral cephalogram. Interobserver variance was also analysed for the study. Results: 50 lateral cephalograms in each group were studied. Out of 15 sets of landmarks, 12 were identified consistent with the TC group. Three landmarks, namely the hyoid bone, second cervical vertebra and third cervical vertebra could not be identified on the TC group. There was no significant difference in the interobserver markings on lateral cephalogram. Conclusions: TCs do mask a few landmarks on the lateral cephalogram. These landmarks are mainly used for analysis of skeletal maturity index (SMI). Lead TCs are probably the most convenient and easily available means to protect the thyroid from unwanted radiation while taking lateral cephalogram. It is therefore encouraged to use a TC during routine cephalometric radiography where SMI information is not needed.

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Antepartum Dental Radiography and Infant Low Birth Weight

Cited by 31 publications

References 0 publications

Early victims of X-rays: a tribute and current perception

Early victims of X-rays: a tribute and current perception

"Doctor, will that x-ray harm my unborn child?"

Utility of thyroid collars in cephalometric radiography

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