Strategy for reducing cytotoxicity and obtaining esthetic efficacy with 15 min of in-office dental bleaching

Zuta, Uxua Ortecho; Duque, Carla Caroline de Oliveira; Ribeiro, Rafael Antônio de Oliveira; Leite, Maria Luísa; Soares, Diana Gabriela; Hebling, Josimeri; Briso, André Luiz Fraga; Costa, Carlos Alberto de Souza

doi:10.1007/s00784-022-04379-z

Cited by 5 publications

(6 citation statements)

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“…Bovine teeth have emerged as the most commonly used alternative due to their abundance and similarities in various characteristics with human teeth 36,37 . However, while intact bovine teeth have been used for color alteration, 44 modifications have been necessary for evaluating HP concentration within the pulpal chamber 3,5,9,38–45 . As mentioned in the introduction section, only a small part of the bovine tooth is typically used to simulate an artificial cavity.…”

Section: Discussionmentioning

confidence: 99%

“…As mentioned in the introduction section, only a small part of the bovine tooth is typically used to simulate an artificial cavity. The dentin and enamel thickness are reduced to make them more similar to human teeth 3,5,9,38–45 …”

Section: Discussionmentioning

confidence: 99%

“…36,37 However, while intact bovine teeth have been used for color alteration, 44 modifications have been necessary for evaluating HP concentration within the pulpal chamber. 3,5,9,[38][39][40][41][42][43][44][45] As mentioned in the introduction section, only a small part of the bovine tooth is typically used to simulate an artificial cavity. The dentin and enamel thickness are reduced to make them more similar to human teeth.…”

Section: Discussionmentioning

confidence: 99%

“…However, in bleaching studies, the entire bovine tooth is not typically used. Instead, bovine teeth are cut and prepared in small parts, altering the amount of dentin and enamel, making it impractical to simulate a real clinical situation 5,9,38–45 . In alone study, human teeth and bovine teeth were compared regarding HP within the pulp cavity in vitro 46 .…”

Section: Introductionmentioning

confidence: 99%

“…Instead, bovine teeth are cut and prepared in small parts, altering the amount of dentin and enamel, making it impractical to simulate a real clinical situation. 5,9,[38][39][40][41][42][43][44][45] In alone study, human teeth and bovine teeth were compared regarding HP within the pulp cavity in vitro. 46 However, the authors sought to delve into the behavior of teeth restored with various materials, subjected to a specific bleaching protocol.…”

Section: Introductionmentioning

confidence: 99%

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Evaluating color change and hydrogen peroxide penetration in human and bovine teeth through in‐office bleaching procedures

Favoreto,

Cordeiro,

Centenaro

et al. 2024

J Esthet Restor Dent

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ObjectiveAssess color alteration and hydrogen peroxide (HP) penetration in human and bovine teeth using various in‐office bleaching protocols with different application times.Materials and MethodsThirty healthy human premolars and 30 healthy bovine incisors were divided into five groups and subjected to different bleaching protocols: 2 × 15 min, 1 × 30 min, 2 × 20 min, or 1 × 40 min, with a control group for each tooth type. All teeth were treated with 35% HP gel. Color alteration was measured using digital spectrophotometry before and 1 week after bleaching. HP concentration within the pulp was determined via UV–Vis spectrophotometry. Statistical analysis included one‐way ANOVA, Tukey's, and Dunnett's tests (α = 0.05).ResultsAll groups exhibited significant color alteration, with no statistically differences among them (p > 0.05). However, significant differences were observed when compared with their respective control groups (p < 0.05). HP penetration into the pulp was evident in all bleached teeth compared to the control groups (p < 0.05), with the 2 × 20 group showing the highest HP levels within the pulp cavity, irrespective of tooth type (p < 0.05).ConclusionA simplified 1 × 30‐min protocol can be recommended as it effectively maintains color alteration and HP penetration, irrespective of whether human or bovine teeth.Clinical SignificanceThis study suggests that an in‐office dental bleaching protocol using a 1 × 30‐min session is recommended, as it ensures both effective color change and no increase in the amount of HP penetration.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%