Evidence map›Paper›PMID 34117564›Full record

ArticleClinical oral investigations2022

In-office tooth bleaching with chitosan-enriched hydrogen peroxide gels: in vitro results.

Núbia Inocencya Pavesi Pini, Marcella Ricomini Piccelli, Waldemir Franscisco Vieira-Junior, Laura Nobre Ferraz, Flávio Henrique Baggio Aguiar, Débora Alves Nunes Leite Lima

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Article in Clinical oral investigations, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed.

  1. High-Concentration Hydrogen Peroxide Gels Containing Calcium Polyphosphate Associated With Violet Led Light: Bleaching Efficacy and Effects on Enamel Properties.Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.] · 2026
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors.

Núbia Inocencya Pavesi PiniDepartment of Prosthodontics and Restorative Dentistry, Uningá University Center, Road PR 317, n° 6114, Maringá, PR, 87035-510, Brazil.
Marcella Ricomini PiccelliDepartment of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Av. Limeira, 901, Piracicaba, SP, 13414-903, Brazil.
Waldemir Franscisco Vieira-JuniorDepartment of Restorative Dentistry, São Leopoldo Mandic Institute and Dental Research Center, Campinas, SP, 13045-755, Brazil.
Laura Nobre FerrazDepartment of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Av. Limeira, 901, Piracicaba, SP, 13414-903, Brazil. nobreferraz@hotmail.com.ORCID http://orcid.org/0000-0002-6234-8913
Flávio Henrique Baggio AguiarDepartment of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Av. Limeira, 901, Piracicaba, SP, 13414-903, Brazil.
Débora Alves Nunes Leite LimaDepartment of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Av. Limeira, 901, Piracicaba, SP, 13414-903, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveThis study aimed to evaluate the effects of adding chitosan to 35% hydrogen peroxide gels (for in-office bleaching), with or without calcium gluconate, on tooth properties and bleaching efficacy.

methodsBovine enamel/dentin specimens (4 × 4 × 2.5 mm) were randomly allocated into groups (n = 10): negative control (unbleached), bleaching with 35% hydrogen peroxide gel (35% HP, commercial gel); 35% HP with 2% chitosan (% wt) (35% HP + chitosan), 35% HP and calcium (35% HP + Ca, commercial gel), and 35% HP + Ca + 2% chitosan. Variation of surface profile (ΔRa) and color analyses (ΔL*, Δa*, Δb*, ΔE*

resultsConsidering ΔL*, Δa*, Δb*, ΔE*

conclusionChitosan-enriched hydrogen peroxide gels can reduce negative impacts on tooth properties without affecting bleaching efficacy. CLINICAL RELEVANCE: Although commercial gels containing remineralizing agents such as calcium reduce the negative effects on the properties of teeth, the addition of chitosan appears to be a promising approach to preservation of dental properties without interfering in bleaching efficacy.

Indexed as

ChitosanTooth BleachingTooth Bleaching AgentsAnimalsCattleGelsHydrogen PeroxideChitosanGelsHydrogen PeroxideTooth Bleaching AgentsChitosanEnamelHydrogen peroxideTooth bleaching

Identifiers

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.