Spectrophotometric insights: calcium hydroxide influences tooth discolorations induced by short-term application of antibiotic/corticosteroid pastes

• Published in: Clinical oral investigations 2021-03, Vol.25 (3), p.1141-1149
• Main Authors: Eggmann, Florin, Rihs, Jeremy, Lenherr, Patrik, Weiger, Roland, Krastl, Gabriel, Zaugg, Lucia K.
• Format: Article
• Language: English
• Subjects: Adrenal Cortex Hormones; Animals; Anti-Bacterial Agents; Antibiotics; Calcium Hydroxide; Cattle; Color; Corticosteroids; Dental caries; Dental enamel; Dentin; Dentistry; Medicine; Original Article; Spectrophotometry; Tooth Discoloration - chemically induced; Tooth Discoloration - drug therapy
• ISSN: 1432-6981; 1436-3771
• DOI: 10.1007/s00784-020-03414-1

Objectives This in vitro study aimed to assess the influence of a calcium hydroxide dressing regarding the relative color change (Δ E ) of enamel–dentin specimens previously exposed to antibiotic/corticosteroid pastes. Materials and methods Eighty bovine enamel–dentin specimens with a cylindrical central cavity were randomly allocated to four groups: NEG (empty), POS (blood), LED (Ledermix), and ODO (Odontopaste) ( n  = 20 each). The materials were applied and sealed with self-adhesive resin luting material. After 3 weeks, the materials were removed and a calcium hydroxide (Ca(OH) 2 ) dressing was placed in all cavities. After a further 3-week storage period, the cavities were restored with resin-based composite. Spectrophotometric color measurements were taken over 6 months, and Δ E values were calculated. A Tukey’s multiple comparison test was performed to assess significant differences within the treatment groups ( p