Skip to Main content Skip to Navigation
Master Thesis

Mesure in vivo du changement de couleur des dents naturelles sous l'effet de la déshydratation : étude d'un groupe de patients de moins de trente ans

Abstract : Objectives: To asses in the young patient any change in tooth colour resulting from dehydration and the time required for any change to return to baseline. Material and Method: 20 subjects with intact maxillary central incisors (age between 21 and 28, sex ratio = 1) were recruited. Spectrophotometric measurements were taken before dehydration and after rubber dam isolation every 10 min for 30 min. Test teeth were allowed to rehydrate and measurements taken every 10 min for 30 min. Tooth colour was assessed at cervical, middle and incisal areas. Data was collected in CIE L*a*b* colour coordinates. Results: All colour coordinates showed significant differences during the periods of dehydration and rehydration, except L* after 20 min rehydration. Conclusions: Teeth became lighter and more saturated when dehydrated. 20 minutes were necessary to no longer perceive colour difference (ΔE˂1). Most daily procedures lead to dehydration. It is important that the shade matching procedure is carried out at the beginning of the appointment to avoid unacceptable mismatch of colour between natural teeth and dental restoration.
Document type :
Master Thesis
Complete list of metadatas

Cited literature [51 references]  Display  Hide  Download

https://dumas.ccsd.cnrs.fr/dumas-01245445
Contributor : Frédérique Gambade <>
Submitted on : Thursday, December 17, 2015 - 11:27:10 AM
Last modification on : Wednesday, January 15, 2020 - 9:03:57 AM
Long-term archiving on: : Friday, March 18, 2016 - 12:20:38 PM

Identifiers

  • HAL Id : dumas-01245445, version 1

Collections

Citation

Adrien Boucher. Mesure in vivo du changement de couleur des dents naturelles sous l'effet de la déshydratation : étude d'un groupe de patients de moins de trente ans. Chirurgie. 2015. ⟨dumas-01245445⟩

Share

Metrics

Record views

105

Files downloads

908