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Turska-Szybka A, Piotrkowicz Z, Prokopczyk M, Olczak-Kowalczyk D, Sierakowski M, Gozdowski D, Tomczyk J. Concentration of Fluoride in Saliva After Fluoride Gel Application: A Randomised Clinical Trial. Int Dent J 2024; 74:794-800. [PMID: 38734515 DOI: 10.1016/j.identj.2024.01.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 12/29/2023] [Accepted: 01/03/2024] [Indexed: 05/13/2024] Open
Abstract
OBJECTIVE The aim of this randomised clinical trial (RCT) was to assess the concentration of fluoride ions in saliva after applying fluoride gel and to examine the extent to which rinsing the mouth with water affects the content of fluoride ions in saliva as opposed to no rinsing after brushing teeth with gel. METHODS This single-blind RCT was conducted amongst a group of students (N = 103) and consisted of a questionnaire, clinical examination, saliva collection, and laboratory analysis. After saliva samples were collected, the students brushed their teeth for 2 minutes with Elmex Gelée (Colgate-Palmolive). Next, saliva was collected after 15 and 60 minutes from Group A (spitting out saliva after brushing) and from Group B (spitting out and rinsing with water after brushing). Statistical analysis was performed using a t test to compare the means between the groups. RESULTS Fifteen minutes after brushing, the level of fluoride increased in Group A about 15-fold to 15.33 ± 14.73 ppm and in Group B about 6-fold to 6.19 ± 5.97 ppm (P < .001). After 60 minutes, in Group A it decreased to 1.68 ± 0.83 ppm and in Group B to 0.60 ± 0.37 ppm (P < .001). CONCLUSIONS The use of fluoride gel in the absence of mouth rinsing produced significantly higher level and a concentration of fluoride in saliva. A post-gel brushing without rinsing might be suitable for patients at high risk for caries. Hence fruther research on the effect of a mouth rinse after use of fluoride gels is eesential to confirm our findings, and to promulgate evidence-based recommendations.
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Affiliation(s)
- Anna Turska-Szybka
- Department of Paediatric Dentistry, Medical University of Warsaw, Poland
| | - Zuzanna Piotrkowicz
- Students' Research Group at the Department of Paediatric Dentistry, Medical University of Warsaw, Poland
| | - Maria Prokopczyk
- Students' Research Group at the Department of Paediatric Dentistry, Medical University of Warsaw, Poland
| | | | - Maciej Sierakowski
- Institute of Biological Science, The Cardinal Stefan Wyszynski University, Warsaw, Poland
| | - Dariusz Gozdowski
- Department of Biometry, Warsaw University of Life Science, Warsaw, Poland
| | - Jacek Tomczyk
- Institute of Biological Science, The Cardinal Stefan Wyszynski University, Warsaw, Poland
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Sampaio C, Delbem ACB, Hosida TY, Fernandes AVP, do Amaral B, de Morais LA, Monteiro DR, Pessan JP. Amount of Dentifrice and Fluoride Concentration Affect the pH and Inorganic Composition of Dual-Species Biofilms of Streptococcus mutans and Candida albicans. Pharmaceutics 2024; 16:562. [PMID: 38675223 PMCID: PMC11054664 DOI: 10.3390/pharmaceutics16040562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 10/28/2023] [Accepted: 11/01/2023] [Indexed: 04/28/2024] Open
Abstract
This work assessed the influence of the amount of dentifrice and fluoride (F) concentration in the product on the pH and inorganic components of Streptococcus mutans and Candida albicans dual-species biofilms. The biofilms were treated with suspensions of fluoride dentifrices containing 550 or 1100 ppm of F (550 F or 1100 F, respectively) administered at comparable intensities: (i-1) 550 F/0.08 g or 1100 F/0.04 g; (i-2) 550 F/0.16 g or 1100 F/0.08 g; and (i-3) 550 F/0.32 g or 1100 F/0.16 g. A placebo dentifrice (without NaF, 0.32 g) was used as a negative control. After the last treatment, the biofilm pH was measured and the F, calcium (Ca), and phosphorus (P) concentrations were determined. Data were subjected to an ANOVA/Kruskal-Wallis test, and a Student-Newman-Keuls test. The highest biofilm pH and F concentrations (biomass and fluid) were observed for 1100 F at i-3. Overall, 1100 F resulted in F levels similar to 550 F for i-1 and i-2. In addition, 550 F applied at i-2 and i-3 led to higher F in the biomass/fluid compared to 1100 F applied at i-1 and i-2, respectively. In biomass, the lowest Ca concentrations were observed for 1100 F at i-3. The conclusion drawn is that the treatment intensity holds greater significance as a parameter compared to the concentration of F or the amount of dentifrice when considered individually.
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Affiliation(s)
- Caio Sampaio
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba 16015-050, SP, Brazil; (A.C.B.D.); (T.Y.H.); (A.V.P.F.); (B.d.A.); (L.A.d.M.); (D.R.M.); (J.P.P.)
| | - Alberto Carlos Botazzo Delbem
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba 16015-050, SP, Brazil; (A.C.B.D.); (T.Y.H.); (A.V.P.F.); (B.d.A.); (L.A.d.M.); (D.R.M.); (J.P.P.)
| | - Thayse Yumi Hosida
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba 16015-050, SP, Brazil; (A.C.B.D.); (T.Y.H.); (A.V.P.F.); (B.d.A.); (L.A.d.M.); (D.R.M.); (J.P.P.)
| | - Ana Vitória Pereira Fernandes
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba 16015-050, SP, Brazil; (A.C.B.D.); (T.Y.H.); (A.V.P.F.); (B.d.A.); (L.A.d.M.); (D.R.M.); (J.P.P.)
| | - Bruna do Amaral
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba 16015-050, SP, Brazil; (A.C.B.D.); (T.Y.H.); (A.V.P.F.); (B.d.A.); (L.A.d.M.); (D.R.M.); (J.P.P.)
| | - Leonardo Antônio de Morais
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba 16015-050, SP, Brazil; (A.C.B.D.); (T.Y.H.); (A.V.P.F.); (B.d.A.); (L.A.d.M.); (D.R.M.); (J.P.P.)
| | - Douglas Roberto Monteiro
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba 16015-050, SP, Brazil; (A.C.B.D.); (T.Y.H.); (A.V.P.F.); (B.d.A.); (L.A.d.M.); (D.R.M.); (J.P.P.)
- Graduate Program in Health Sciences, University of Western São Paulo (UNOESTE), Presidente Prudente 19050-920, SP, Brazil
| | - Juliano Pelim Pessan
- Department of Preventive and Restorative Dentistry, School of Dentistry, São Paulo State University (UNESP), Araçatuba 16015-050, SP, Brazil; (A.C.B.D.); (T.Y.H.); (A.V.P.F.); (B.d.A.); (L.A.d.M.); (D.R.M.); (J.P.P.)
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Hirose M, Murata Y, Fukuda A, Fujita Y, Yahata S, Kaji M, Saitoh M. Salivary fluoride concentrations following toothbrushing with experimental toothpaste containing surface pre-reacted glass-ionomer (S-PRG) filler. Clin Oral Investig 2023; 27:4433-4446. [PMID: 37285102 DOI: 10.1007/s00784-023-05063-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 05/07/2023] [Indexed: 06/08/2023]
Abstract
BACKGROUND Single-blind 9 case comparative studies were conducted to evaluate salivary fluoride concentrations following toothbrushing using experimental toothpaste containing surface pre-reacted glass-ionomer (S-PRG) fillers. Preliminary tests were conducted in order to determine the volume of usage as well as the concentrations (wt %) of S-PRG filler. Based on the results given these experiments, we compared the salivary fluoride concentrations following toothbrushing with 0.5 g of 4 different types of toothpastes: 5 wt % S-PRG filler, 1400 ppm F AmF (amine fluoride), 1500 ppm F NaF (sodium fluoride), and MFP (monofluorophosphate) containing toothpaste. METHODS Of the 12 participants, 7 participated in the preliminary study and 8 in the main study. All participants brushed their teeth using the scrubbing method for 2 min. At first, 1.0 and 0.5 g of 20 wt % S-PRG filler toothpastes were used to compare, then followed by 0.5 g of 0 (control), 1, and 5 wt % S-PRG toothpastes, respectively. The participants spat out once and rinsed with 15 mL of distilled water for 5 s. Saliva was collected for 3 min each at different time intervals of 0 (baseline), 5, 10, 15, 30, 60, 120, and 180 min after the rinsing. Fluoride concentrations were determined using a fluoride electrode, and the area under the salivary clearance - time curve (AUC: ppm‧min) of each toothpaste was calculated as the salivary fluoride retention. The main study was then conducted to evaluate the salivary fluoride concentrations as well as the AUC value using 0.5 g of 5 wt % S-PRG filler toothpaste, followed by NaF, MFP, and AmF toothpastes. RESULTS Since there were no statistical differences between using 1.0 and 0.5 g of 20 wt % S-PRG toothpastes in salivary fluoride concentrations as well as the AUC value throughout the 180 min measurement, the volume was set as 0.5 g for the following studies. Concentrations of 5 and 20 wt % S-PRG toothpastes retained 0.09 ppm F or more in saliva even after 180 min. No statistical differences were seen in the salivary fluoride concentrations at any time intervals as well as the AUC value between 5 and 20 wt % S-PRG toothpastes. Based on these results, the concentration of 5 wt % S-PRG toothpaste was used for the main comparative study. MFP toothpaste resulted in by far the lowest salivary fluoride concentrations (0.06 ppm F at 180 min) and the AUC value (24.6 ppm‧min), whereas 5 wt % S-PRG toothpaste (0.15 ppm F at 180 min, 92.3 ppm‧min) displayed retention on par with AmF toothpaste which appeared to result in higher values (0.17 ppm F at 180 min, 103 ppm‧min), compared to NaF toothpaste (0.12 ppm F at 180 min, 49.3 ppm‧min). CONCLUSIONS The salivary fluoride concentrations following toothbrushing with 0.5 g of 5 wt % S-PRG filler containing toothpaste showed retention similar to the best performing 1400 ppm F AmF toothpaste even 180 min after toothbrushing.
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Affiliation(s)
- Mina Hirose
- Division of Pediatric Dentistry, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan.
| | - Yukie Murata
- Division of Pediatric Dentistry, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Atsushi Fukuda
- Division of Pediatric Dentistry, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Yusuke Fujita
- Division of Pediatric Dentistry, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Shoko Yahata
- Division of Pediatric Dentistry, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Minako Kaji
- Division of Pediatric Dentistry, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
| | - Masato Saitoh
- Division of Pediatric Dentistry, Department of Oral Growth and Development, School of Dentistry, Health Sciences University of Hokkaido, Ishikari-Tobetsu, Japan
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Opydo-Szymaczek J, Pawlaczyk-Kamieńska T, Borysewicz-Lewicka M. Fluoride Intake and Salivary Fluoride Retention after Using High-Fluoride Toothpaste Followed by Post-Brushing Water Rinsing and Conventional (1400-1450 ppm) Fluoride Toothpastes Used without Rinsing. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13235. [PMID: 36293818 PMCID: PMC9603037 DOI: 10.3390/ijerph192013235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Revised: 10/11/2022] [Accepted: 10/11/2022] [Indexed: 06/16/2023]
Abstract
This study aimed to compare the fluoride intake and salivary fluoride levels after brushing with conventional (1400-1450 ppm) fluoride toothpaste containing different fluoride agents: amine fluoride (AmF), sodium fluoride (NaF), sodium monofluorophosphate (SMFP), potassium fluoride (KF), and a high-fluoride (5000 ppm) toothpaste containing NaF. Fourteen volunteers took part in the study. They were instructed to brush and spit without rinsing after using conventional toothpaste or brush and rinse with water after using a high-fluoride toothpaste. Fluoride concentrations were determined using ion-selective fluoride (09-37 type) in the saliva samples before and after procedures. Fluoride intake was estimated based on fluoride recovered after brushing. Additionally, the amount of fluoride present in the oral fluids and lost during the rapid clearance phase after toothbrushing was calculated based on salivary fluoride levels and saliva flow immediately after brushing. Salivary fluoride after using high-fluoride toothpaste was significantly higher than those observed after conventional products. Two hours after brushing, salivary fluoride concentrations did not differ significantly from baseline values (p > 0.05) unless a high-fluoride product was used. Results indicate that by refraining from rinsing after brushing with conventional toothpaste, we cannot obtain fluoride retention in saliva as with high-fluoride toothpaste. Fluoride ingestion was higher after using a high-fluoride product.
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Affiliation(s)
- Justyna Opydo-Szymaczek
- Department of Pediatric Dentistry, Chair of Pediatric Dentistry, Poznan University of Medical Sciences, 70 Bukowska Street, 60-812 Poznan, Poland
| | - Tamara Pawlaczyk-Kamieńska
- Department of Risk Group Dentistry, Chair of Pediatric Dentistry, Poznan University of Medical Sciences, 70 Bukowska Street, 60-812 Poznan, Poland
| | - Maria Borysewicz-Lewicka
- Department of Risk Group Dentistry, Chair of Pediatric Dentistry, Poznan University of Medical Sciences, 70 Bukowska Street, 60-812 Poznan, Poland
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Albahrani MM, Alyahya A, Qudeimat MA, Toumba KJ. Salivary fluoride concentration following toothbrushing with and without rinsing: a randomised controlled trial. BMC Oral Health 2022; 22:53. [PMID: 35241051 PMCID: PMC8896328 DOI: 10.1186/s12903-022-02086-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 02/22/2022] [Indexed: 11/13/2022] Open
Abstract
Background Caries prevalence has declined significantly since the introduction of fluoridated toothpaste. There have been several developments regarding specific active fluoride ingredients but not enough evidence to support one over the other. The purpose of this double-blind randomized controlled trial was to compare salivary fluoride concentrations of different fluoride formulations in the form of toothpaste with and without post-brushing water rinsing in adults.
Methods The study included 120 participants who were randomly assigned to one of 12 groups (10 participants/group). The toothpaste formulas investigated included (1) fluoride-free (0 ppmF); (2) sodium fluoride (1450 ppmF); (3) sodium monofluorophosphate (1450 ppmF); (4) sodium fluoride and monofluorophosphate combined (1450 ppmF); (5) stannous fluoride and sodium fluoride combined (1450 ppmF); and (6) amine fluoride (1400 ppmF). Block randomisation was used to assign each participant to one of the 12 groups. Participants brushed with 1.0 g of one of the six different toothpaste formulations either with or without post-brushing water rinsing. Saliva was collected at six different times (baseline and at 1, 15, 30, 60, and 90 min/s post-brushing). Samples were analysed using a fluoride ion-specific sensitive electrode connected to an ion analyser. Results The demographic characteristics of the participants were not significantly different among the groups (P > 0.05). Time, toothpaste formulation, and post-brushing rinsing routines had significant effects on saliva fluoride retention (P < 0.05). Amine fluoride-containing toothpaste was the only formula that showed statistically significantly higher concentrations of salivary fluoride at 90 min in both the rinsing and non-rinsing groups. Sodium monofluorophosphate toothpaste did not result in a significant difference compared to the control group at any time point, in both rinsing and non-rinsing groups. Conclusions Based on the results from this study, no rinsing after toothbrushing in adults can be recommended when sodium monofluorophosphate containing toothpaste formula is used. It also concludes that amine fluoride resulted in a significantly higher saliva fluoride concentration at 90 min in both the rinsing and non-rinsing groups compared to other fluoride toothpaste formulations. Registry: Protocol Registration and Results System (ClinicalTrials.gov). Clinical trial registration number: NCT02740803 (15/04/2016).
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Affiliation(s)
- Marwah M Albahrani
- Department of Paediatric Dentistry, Farwanyia Speciality Dental Centre, Farwanyia, Kuwait.,Department of Paediatric Dentistry, The University of Leeds School of Dentistry, Clarendon Way, Leeds, LS2 9JT, West Yorkshire, UK
| | - Asma Alyahya
- Department of Developmental and Preventive Sciences, Kuwait University, Jabriyah, Kuwait
| | - Muawia A Qudeimat
- Department of Developmental and Preventive Sciences, Kuwait University, Jabriyah, Kuwait. .,Faculty of Dentistry, Kuwait University, PO Box: 24923, Safat, 13110, Kuwait.
| | - K Jack Toumba
- Department of Developmental and Preventive Sciences, Kuwait University, Jabriyah, Kuwait.,Department of Paediatric Dentistry, The University of Leeds School of Dentistry, Clarendon Way, Leeds, LS2 9JT, West Yorkshire, UK
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de Sousa Lopes MS, Santana GB, Macena NS, Carvalho GAO, Mota BIS, Prado VLG, Vale GC. Nocturnal Salivary Fluoride Bioavailability After Brushing with a High-fluoride Dentifrice. Biol Trace Elem Res 2022; 200:458-463. [PMID: 33665788 DOI: 10.1007/s12011-021-02658-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Accepted: 02/25/2021] [Indexed: 10/22/2022]
Abstract
The use of fluoridated dentifrices is recognized as the main reason for the decline of dental caries and its effect is associated with the bioavailability of fluoride (F) in the oral cavity. High-fluoride dentifrice has been indicated for patients at high risk of caries and management of root lesions. This study aimed to evaluate the bioavailability of F in saliva after the use of high-fluoride dentifrice during the nocturnal period. Fifteen healthy adults participated in this is in vivo and crossover study in which the concentration of F in their saliva was determined after brushing with the tested dentifrices: a conventional (1450 ppm F) or with high-fluoride concentration (5000 ppm F). Before brushing, the participants collected the non-stimulated saliva (baseline), immediately after brushing (time zero) and after 5min, 2h, 4h, and 8h, during the nocturnal period (between 10:00 pm and 06:00 am). The salivary F concentration was determined using a specific F ion electrode. Regarding statistical analysis, a paired t-test was used to compare dentifrices with p fixed at 5%. At baseline, there was no significant difference between groups (p>0.001). Immediately after brushing, both dentifrices increased the F salivary concentration, with the highest concentration reached in time zero; however, the use of 5000 ppm F dentifrice maintained the higher F salivary concentration at all times evaluated (p<0.001), remaining higher until 8 h after brushing. Furthermore, this treatment showed higher F bioavailability in relation to time, evaluated by the area under the curve (p<0.001). Thus, it can be concluded that the high-fluoride dentifrice increased the bioavailability of salivary F during the nocturnal period in comparison with conventional dentifrice.
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Affiliation(s)
- Maria Suzi de Sousa Lopes
- Department of Restorative Dentistry, Federal University of Piaui, Campus Universitário Ministro Petrônio Portella - SG 10, Bairro Ininga, Teresina, Piauí, CEP: 64049-550, Brazil
| | - Guilherme Bandeira Santana
- Department of Restorative Dentistry, Federal University of Piaui, Campus Universitário Ministro Petrônio Portella - SG 10, Bairro Ininga, Teresina, Piauí, CEP: 64049-550, Brazil
| | - Niciane Soares Macena
- Department of Restorative Dentistry, Federal University of Piaui, Campus Universitário Ministro Petrônio Portella - SG 10, Bairro Ininga, Teresina, Piauí, CEP: 64049-550, Brazil
| | - Guereth Alexsanderson Oliveira Carvalho
- Department of Restorative Dentistry, Federal University of Piaui, Campus Universitário Ministro Petrônio Portella - SG 10, Bairro Ininga, Teresina, Piauí, CEP: 64049-550, Brazil
| | - Brenda Izabela Santana Mota
- Department of Restorative Dentistry, Federal University of Piaui, Campus Universitário Ministro Petrônio Portella - SG 10, Bairro Ininga, Teresina, Piauí, CEP: 64049-550, Brazil
| | - Vera Lúcia Gomes Prado
- Department of Restorative Dentistry, Federal University of Piaui, Campus Universitário Ministro Petrônio Portella - SG 10, Bairro Ininga, Teresina, Piauí, CEP: 64049-550, Brazil
| | - Glauber Campos Vale
- Department of Restorative Dentistry, Federal University of Piaui, Campus Universitário Ministro Petrônio Portella - SG 10, Bairro Ininga, Teresina, Piauí, CEP: 64049-550, Brazil.
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Shen P, Fernando JR, Yuan Y, Walker GD, Reynolds C, Reynolds EC. Bioavailable fluoride in calcium-containing dentifrices. Sci Rep 2021; 11:146. [PMID: 33420297 PMCID: PMC7794534 DOI: 10.1038/s41598-020-80503-x] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 12/16/2020] [Indexed: 11/14/2022] Open
Abstract
Calcium added to dentifrices can complex with fluoride ions to reduce intra-oral bioavailability and therefore efficacy in preventing dental caries. Six commercially available dentifrices containing different types of calcium and fluoride were analyzed for total and bioavailable fluoride levels by adding 10 g of dentifrice to 30 mL of distilled deionized water and mixing vigorously for 1 min to simulate toothbrushing. One milliliter of the dentifrice/water slurry was immediately centrifuged and the supernatant removed for bioavailable fluoride analysis and the mixed slurry prior to centrifugation used for total fluoride analysis using a modified microdiffusion method. The concentration of fluoride was determined using a fluoride ion-selective electrode calibrated with internal fluoride standards. All the dentifrices had similar total fluoride concentrations to those indicated on their labels (94% to 105%). However, only one dentifrice that contained calcium in the form of casein phosphopeptide amorphous calcium phosphate (CPP-ACP) had almost 100% (97%) of fluoride in bioavailable form. The other dentifrices contained calcium carbonate and they exhibited significantly (p < 0.001) lower bioavailable fluoride levels (27% to 61%), through the generation of poorly soluble fluoride phases. The saliva biomimetic CPP, as CPP-ACP, in a dentifrice stabilised calcium and fluoride ions to maintain fluoride’s bioavailability.
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Affiliation(s)
- Peiyan Shen
- Centre for Oral Health Research, Melbourne Dental School, Bio21 Institute, The University of Melbourne, 720 Swanston Street, Carlton, Melbourne, VIC, 3010, Australia
| | - James R Fernando
- Centre for Oral Health Research, Melbourne Dental School, Bio21 Institute, The University of Melbourne, 720 Swanston Street, Carlton, Melbourne, VIC, 3010, Australia
| | - Yi Yuan
- Centre for Oral Health Research, Melbourne Dental School, Bio21 Institute, The University of Melbourne, 720 Swanston Street, Carlton, Melbourne, VIC, 3010, Australia
| | - Glenn D Walker
- Centre for Oral Health Research, Melbourne Dental School, Bio21 Institute, The University of Melbourne, 720 Swanston Street, Carlton, Melbourne, VIC, 3010, Australia
| | - Coralie Reynolds
- Centre for Oral Health Research, Melbourne Dental School, Bio21 Institute, The University of Melbourne, 720 Swanston Street, Carlton, Melbourne, VIC, 3010, Australia
| | - Eric C Reynolds
- Centre for Oral Health Research, Melbourne Dental School, Bio21 Institute, The University of Melbourne, 720 Swanston Street, Carlton, Melbourne, VIC, 3010, Australia.
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Kato K, Tamura K, Shimazaki Y. Oral biofilm uptake of mineral ions released from experimental toothpaste containing surface pre-reacted glass-ionomer (S-PRG) filler. Arch Oral Biol 2020; 117:104777. [DOI: 10.1016/j.archoralbio.2020.104777] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 04/24/2020] [Accepted: 05/15/2020] [Indexed: 10/24/2022]
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Mendonça FL, Jordão MC, Val PP, de Alencar CRB, Bassoto MDAG, Honório HM, Magalhães AC, Buzalaf MAR, da Silva TC, Rios D. Eroded enamel rehardening using two intraoral appliances designs in different times of salivary exposure. J Clin Exp Dent 2019; 11:e1127-e1132. [PMID: 31824592 PMCID: PMC6894912 DOI: 10.4317/jced.56222] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2019] [Accepted: 11/04/2019] [Indexed: 01/20/2023] Open
Abstract
BACKGROUND The aim of this study was evaluated the eroded enamel rehardening potential using upper palatal and lower buccal removable appliances in different times of salivary exposure (30 min, 1h, 2h, 12h) after a single erosive challenge event. MATERIAL AND METHODS After initial surface hardness evaluation, bovine enamel blocks were eroded in vitro (0.01 M hydrochloric acid, pH 2.3, 30 seconds), selected (n = 160) and randomly assigned to the two appliance designs and twenty volunteers. Four enamel blocks were inserted in each removable appliance. On the in situ phase, the volunteers were instructed to use the upper palatal and lower buccal appliances simultaneously for 12 nonconsecutive hours. After each predetermined period of time of salivary exposure, the enamel blocks were removed from the appliances for immediate evaluation of surface hardness, enabling percentage of surface hardness recovery calculation (%SHR). The data were analyzed using two-way ANOVA and Tukey's test (α=5%). RESULTS The results showed no difference in the degree of enamel rehardening by the upper palatal or lower buccal appliances (p >0.0001). Regarding the time of use of the appliances, it was demonstrated that 30 minutes (upper = 21.12%, lower = 19.84%) and 1 hour (upper = 35.69%, lower = 30.50%) promoted lower hardness recovery than two hours (upper = 44.65%, lower 40.80%) of salivary exposure (p<0.0001). The use of 12 hours (upper = 49.33%, lower = 49.00%), including the sleeping time of the volunteers did not increase the %SHR. CONCLUSIONS The location of the appliance does not influence the re-hardening ability of saliva and the use of intraoral appliances for 2 hours seems to be appropriate for partial rehardening of the softened enamel surface. Key words:Tooth erosion, in situ, saliva, tooth remineralization.
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Affiliation(s)
- Fernanda-Lyrio Mendonça
- Department of Pediatric Dentistry, Orthodontics and Public Health Bauru School of Dentistry, University of São Paulo - Bauru/SP - Brazil
| | - Maisa-Camillo Jordão
- Department of Pediatric Dentistry, Orthodontics and Public Health Bauru School of Dentistry, University of São Paulo - Bauru/SP - Brazil
| | - Poliana-Pacífico Val
- Department of Pediatric Dentistry, Orthodontics and Public Health Bauru School of Dentistry, University of São Paulo - Bauru/SP - Brazil
| | - Catarina-Ribeiro-Barros de Alencar
- Department of Pediatric Dentistry, Orthodontics and Public Health Bauru School of Dentistry, University of São Paulo - Bauru/SP - Brazil
| | - Marcela-de Azevedo-Garcia Bassoto
- Department of Pediatric Dentistry, Orthodontics and Public Health Bauru School of Dentistry, University of São Paulo - Bauru/SP - Brazil
| | - Heitor-Marques Honório
- Department of Pediatric Dentistry, Orthodontics and Public Health Bauru School of Dentistry, University of São Paulo - Bauru/SP - Brazil
| | - Ana-Carolina Magalhães
- Department of Pediatric Dentistry, Orthodontics and Public Health Bauru School of Dentistry, University of São Paulo - Bauru/SP - Brazil
| | - Marília-Afonso-Rabelo Buzalaf
- Department of Pediatric Dentistry, Orthodontics and Public Health Bauru School of Dentistry, University of São Paulo - Bauru/SP - Brazil
| | - Thiago-Cruvinel da Silva
- Department of Pediatric Dentistry, Orthodontics and Public Health Bauru School of Dentistry, University of São Paulo - Bauru/SP - Brazil
| | - Daniela Rios
- Department of Biological Sciences, Bauru School of Dentistry, University of São Paulo - Bauru/SP - Brazil
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Sotthipoka K, Thanomsuk P, Prasopsuk R, Trairatvorakul C, Kasevayuth K. The effects of toothpaste amounts and post-brushing rinsing methods on salivary fluoride retention. JOURNAL OF HEALTH RESEARCH 2018. [DOI: 10.1108/jhr-11-2018-082] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Purpose
The purpose of this paper is to investigate the salivary fluoride retention as fluoride concentration, amount of soluble fluoride, half-life (t1/2) and salivary flow rate of different amounts of toothpaste and rinsing procedures.
Design/methodology/approach
A randomized crossover study of 21 healthy volunteers was designed to compare pharmacokinetic parameters of 1 g (B1) and 0.3 g (B0.3) of toothpaste without rinsing and brushing with 1 g of toothpaste with expectoration followed by water rinsing (B1R). Unstimulated saliva was collected before brushing as a baseline and at 0, 5, 10, 30, 60 and 90 min after the completion of the tooth brushing procedure.
Findings
The salivary fluoride concentration and amount of soluble fluoride of the B1 group were significantly higher than the B0.3 and B1R groups. The B1 and B1R groups prolonged the remineralizing level up to 60 min while the B0.3 group retained their remineralizing levels for 30 min. The initial t1/2 (rapid phase) of B1 and B1R groups were significantly longer than the B0.3 group. The late t1/2 (slow phase) of the B0.3 group was significantly longer than the B1 group. This is called the two-compartment open pharmacokinetics model. There was no statistical difference of salivary flow rates between all groups.
Originality/value
Non-rinsing and the amount of fluoride toothpaste play an important role in raising salivary fluoride levels and prolonging the remineralizing level of the oral cavity.
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Mazhari F, Boskabady M, Moeintaghavi A, Habibi A. The effect of toothbrushing and flossing sequence on interdental plaque reduction and fluoride retention: A randomized controlled clinical trial. J Periodontol 2018; 89:824-832. [DOI: 10.1002/jper.17-0149] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Revised: 09/29/2017] [Accepted: 10/01/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Fatemeh Mazhari
- Dental Materials Research Center; Mashhad University of Medical Sciences; Mashhad Iran
| | - Marzie Boskabady
- Dental Materials Research Center; Mashhad University of Medical Sciences; Mashhad Iran
| | - Amir Moeintaghavi
- Dental Research Center; Mashhad University of Medical Sciences; Mashhad Iran
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12
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Almohefer SA, Levon JA, Gregory RL, Eckert GJ, Lippert F. Caries lesion remineralization with fluoride toothpastes and chlorhexidine - effects of application timing and toothpaste surfactant. J Appl Oral Sci 2018; 26:e20170499. [PMID: 29898179 PMCID: PMC5963912 DOI: 10.1590/1678-7757-2017-0499] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Accepted: 03/09/2018] [Indexed: 11/22/2022] Open
Abstract
Habitual toothbrushing with fluoridated toothpaste followed by rinsing with antibacterial mouthwashes is a method to maintain good oral hygiene and to diminish the occurrence and severity of dental caries and periodontal disease. However, our understanding of how antimicrobial agents in mouthwashes affect fluoride-mediated caries lesion remineralization is still poor.
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Affiliation(s)
- Sami A Almohefer
- Indiana University School of Dentistry, Department of Prosthodontics, Indianapolis, Indiana, USA.,Hail University College of Dentistry, Department of Prosthodontics, Hail, Saudi Arabia
| | - John A Levon
- Indiana University School of Dentistry, Department of Prosthodontics, Indianapolis, Indiana, USA
| | - Richard L Gregory
- Indiana University School of Dentistry, Department of Biomedical and Applied Sciences, Indianapolis, Indiana, USA
| | - George J Eckert
- Indiana University School of Medicine, Department of Biostatistics, Indianapolis, Indiana, USA
| | - Frank Lippert
- Indiana University School of Dentistry, Department of Cariology, Operative Dentistry and Dental Public Health, Indianapolis, Indiana, USA
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13
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Comparison of residual salivary fluoride retention using amine fluoride toothpastes in caries-free and caries-prone children. Eur Arch Paediatr Dent 2016; 17:165-9. [PMID: 27102319 PMCID: PMC4882375 DOI: 10.1007/s40368-015-0220-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2015] [Accepted: 12/11/2015] [Indexed: 11/09/2022]
Abstract
Aim This was to compare the salivary fluoride levels following tooth brushing with amine fluoride toothpastes containing three different concentrations of F (250 ppm F, 500 ppm F and 1250 ppm F) and to evaluate the effect of rinsing with water on the oral fluoride levels up to 90 min. Methods A double blind randomised six-arm crossover study was conducted with 32 child participants. Patients were divided into two groups depending on their caries experience with caries-free group (n = 17, mean age = 72.9 months) and caries-prone group (n = 15, mean age = 69.6 months, mean dmfs = 12.3). Each participant brushed their teeth with a smear of dentifrice containing (250 ppm, 500 ppm and 1250 ppm F toothpastes) for 60 s. After spitting out the dentifrice/saliva slurry, participants either rinsed with water or did not rinse at all. Samples of whole mixed unstimulated saliva were collected at 0 (baseline), 1, 15, 30, 45, 60 and 90 mins post-brushing/rinsing. Results After completing the study on residual fluoride concentration it was found that caries was not a significant variable (p = 0.567) while every other variable was (all p values <0.001). Time, toothpaste F concentration and rinse had significant effects (p < 0.001). In general, higher residual salivary F concentrations were found with increased F concentration in toothpastes and when no rinsing was performed after brushing. Conclusion The results of this study support the current recommendation of using toothpastes with >1000 ppm F concentration in children with an increased caries risk in addition to spitting excess toothpaste with no rinsing following brushing.
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Hirose M, Murata Y, Fukuda A, Fujita Y, Otomo M, Yahata S, Saitoh M. Fluoride retention in saliva following toothbrushing using different types of fluoridated dentifrices containing 1500 ppm F of NaF and MFP. PEDIATRIC DENTAL JOURNAL 2015. [DOI: 10.1016/j.pdj.2015.04.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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15
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Souza DCC, Maltz M, Hashizume LN. Fluoride retention in saliva and in dental biofilm after different home-use fluoride treatments. Braz Oral Res 2014; 28:S1806-83242014000100248. [PMID: 25166761 DOI: 10.1590/1807-3107bor-2014.vol28.0039] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2013] [Accepted: 04/22/2014] [Indexed: 11/21/2022] Open
Abstract
This single-blind, randomized, crossover study aimed at assessing the long-term fluoride concentrations in saliva and in dental biofilm after different home-use fluoride treatments. The study volunteers (n = 38) were residents of an area with fluoridated drinking water. They were administered four treatments, each of which lasted for one week: twice-daily placebo dentifrice, twice-daily fluoride dentifrice, twice-daily fluoride dentifrice and once-daily fluoride mouthrinse, and thrice-daily fluoride dentifrice. At the end of each treatment period, samples of unstimulated saliva and dental biofilm were collected 8 h after the last oral hygiene procedure. Fluoride concentrations in saliva and dental biofilm were analyzed using a specific electrode. The fluoride concentrations in saliva and dental biofilm 8 h after the last use of fluoride products did not differ among treatments. The results of this study suggest that treatments with home-use fluoride products have no long-term effect on fluoride concentrations in saliva and in dental biofilm of residents of an area with a fluoridated water supply.
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Affiliation(s)
- Daniela Correia Cavalcante Souza
- Department of Preventive and Social Dentistry, Faculty of Dentistry, Universidade Federal do Rio Grande do Sul ? UFRGS, Porto Alegre, RS, Brazil
| | - Marisa Maltz
- Department of Preventive and Social Dentistry, Faculty of Dentistry, Universidade Federal do Rio Grande do Sul ? UFRGS, Porto Alegre, RS, Brazil
| | - Lina Naomi Hashizume
- Department of Preventive and Social Dentistry, Faculty of Dentistry, Universidade Federal do Rio Grande do Sul ? UFRGS, Porto Alegre, RS, Brazil
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16
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Zamataro CB, Tenuta LMA, Cury JA. Low-fluoride dentifrice and the effect of post-brushing rinsing on fluoride availability in saliva. Eur Arch Paediatr Dent 2012; 9:90-3. [DOI: 10.1007/bf03262616] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Keegan GM, Smart JD, Ingram MJ, Barnes LM, Burnett GR, Rees GD. Chitosan microparticles for the controlled delivery of fluoride. J Dent 2012; 40:229-40. [DOI: 10.1016/j.jdent.2011.12.012] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2011] [Revised: 12/14/2011] [Accepted: 12/15/2011] [Indexed: 11/16/2022] Open
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18
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Naumova EA, Sandulescu T, Bochnig C, Gaengler P, Zimmer S, Arnold WH. Kinetics of fluoride bioavailability in supernatant saliva and salivary sediment. Arch Oral Biol 2012; 57:870-6. [PMID: 22341566 DOI: 10.1016/j.archoralbio.2012.01.011] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Revised: 12/06/2011] [Accepted: 01/20/2012] [Indexed: 10/28/2022]
Abstract
UNLABELLED The assessment of the fluoride kinetics in whole saliva as well as in the different salivary phases (supernatant saliva and sediment) is essential for the understanding of fluoride bioavailability. OBJECTIVES To assess the fluoride content, provided by sodium fluoride and amine fluoride, in the supernatant saliva and in salivary sediment. METHODS Seven trained volunteers were randomly attributed to 2 groups in a cross-over design and brushed their teeth in the morning for 3 min with a product containing either sodium fluoride or amine fluoride. Saliva was collected before, immediately after tooth brushing and 30, 120, and 360 min later and measured. The samples were centrifuged 10 min at 3024 × g. Fluoride content of the supernatant saliva and of the sediment was analysed using a fluoride sensitive electrode. All subjects repeated the study cycles 2 times, and statistical analyses were made using the nonparametric sign test for related samples, the Wilcoxon-Mann-Whitney-test for independent samples. RESULTS There was a significant increase in fluoride immediately after tooth brushing in both groups in saliva and sediment. The distribution of fluoride between salivary sediment and supernatant saliva (ratio) varied considerably at the different collection times: decreased from 17.87 in baseline samples of saliva to 0.07 immediately and to 0.86 half an hour after tooth brushing in the sodium fluoride group and from 14.33 to 2.85 and to 3.09 in the amine fluoride group. Furthermore after 120 min and after 360 min after tooth brushing the ratio increased from 17.6 to 31.6 in the sodium fluoride group and from 20.5 to 25.76 in the amine fluoride group. No difference was found in the sediment-supernatant saliva ratio between the sodium fluoride and the amine fluoride groups 360 min after tooth brushing. CONCLUSION For the assessment of fluoride kinetics in whole saliva it is necessary to pay attention to at least four factors: fluoride formulation, time after fluoride application, fluoride concentration in supernatant saliva and fluoride concentration in salivary sediment. This study was approved by the Ethical Committee of the University of Witten/Herdecke permission 21/2008.
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Affiliation(s)
- E A Naumova
- Faculty of Health, School of Dentistry, University of Witten/Herdecke, Germany
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19
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Opydo-Szymaczek J, Opydo J. Salivary fluoride concentrations and fluoride ingestion following application of preparations containing high concentration of fluoride. Biol Trace Elem Res 2010; 137:159-67. [PMID: 20012384 DOI: 10.1007/s12011-009-8575-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2009] [Accepted: 11/19/2009] [Indexed: 10/20/2022]
Abstract
The aim of the study was to assess salivary fluoride concentrations and ingestion of fluorides after five different techniques of topical fluoride treatment. Ten volunteers received applications of fluoride gel, toothpaste, and foam. Fluoride concentrations were determined using ion-selective fluoride electrode in the samples of unstimulated saliva before and after procedures. The amounts of fluoride applied, recovered from the mouth, and retained in the mouth were calculated for each treatment. It was proved that fluoride ingestion following tray application of fluoride foam was significantly lower than ingestion following tray applications of fluoride gel (p < 0.01). The use of limited amounts of fluorides on a tray resulted in similar fluoride retention and lower ingestion comparing to the method which involves a large portion of fluorides followed by rinsing. Tooth brushing resulted in high salivary retention rates per amount of fluorides used in the procedure. These data provide initial concept about the possible advantages of some methods of topical fluoride application over others.
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Affiliation(s)
- Justyna Opydo-Szymaczek
- Department of Pediatric Dentistry, Poznan University of Medical Sciences, Bukowska 70, 60-812 Poznan, Poland.
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20
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de Andrade Meyer AC, de Mello Tera T, da Rocha JC, Jardini MAN. Clinical and microbiological evaluation of the use of toothpaste containing 1% chlorhexidine and the influence of motivation on oral hygiene in patients with motor deficiency. SPECIAL CARE IN DENTISTRY 2010; 30:140-5. [PMID: 20618779 DOI: 10.1111/j.1754-4505.2010.00140.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Patients with motor deficiency have variable difficulties with mechanical plaque control, and as a consequence, the incidence of dental caries and periodontal disease can be higher in these patients. The objective of this study was to evaluate the clinical and microbiological efficacy of a toothpaste containing 1% chlorhexidine, which was used by patients with motor deficiency for 14 days. The reduction in plaque and gingival index and the impact on salivary microorganisms was evaluated. We conclude that the motivation of caregivers to carry out oral hygiene for patients with mental and motor deficiency is of great importance and is effective in reducing the formation of plaque as long as it is continuously reinforced. The use of chlorhexidine-containing toothpaste significantly reduced the plaque index and microorganism count between days 0 and 14. A reduction was also observed in the group that used a dentifrice without the chlorhexidine, but this difference was not significant.
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Pessan J, Alves K, Ramires I, Taga M, Sampaio F, Whitford G, Buzalaf M. Effects of Regular and Low-fluoride Dentifrices on Plaque Fluoride. J Dent Res 2010; 89:1106-10. [DOI: 10.1177/0022034510375827] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Previous studies have indicated that the use of low-fluoride dentifrices could lead to proportionally higher plaque fluoride levels when compared with conventional dentifrices. This double-blind, randomized, crossover study determined the effects of placebo, low-fluoride, and conventional dentifrices on plaque fluoride concentrations ([F]) in children living in communities with 0.04, 0.72, and 3.36 ppm F in the drinking water. Children used the toothpastes twice daily, for 1 wk. Samples were collected 1 and 12 hrs after the last use of dentifrices and were analyzed for fluoride and calcium. Similar increases were found 1 hr after the children brushed with low-fluoride ( ca. 1.9 mmol F/kg) and conventional ( ca. 2.4 mmol F/kg) dentifrices in the 0.04- and 0.72-ppm-F communities. Despite the fact that the increases were less pronounced in the 3.36-ppm-F community, our results indicate that the use of a low-fluoride dentifrice promotes a proportionally higher increase in plaque [F] when compared with that achieved with a conventional dentifrice, based on dose-response considerations.
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Affiliation(s)
- J.P. Pessan
- Department of Pediatric Dentistry and Public Health, Araçatuba Dental School, São Paulo State University (UNESP), Araçatuba, SP, Brazil
| | - K.M.R.P. Alves
- Department of Pediatric Dentistry and Public Health, Araçatuba Dental School, São Paulo State University (UNESP), Araçatuba, SP, Brazil
| | - I. Ramires
- Department of Biological Sciences, Bauru Dental School, University of São Paulo-Bauru, SP, Brazil
| | - M.F.L. Taga
- Hospital for Rehabilitation of Craniofacial Anomalies - Biostatistics Unit, University of São Paulo, Bauru, SP, Brazil
| | - F.C. Sampaio
- Health Science Center, Federal University of Paraíba, João Pessoa, PB, Brazil
| | - G.M. Whitford
- Department of Oral Biology, Medical College of Georgia, Augusta, GA, USA
| | - M.A.R. Buzalaf
- Department of Biological Sciences, Bauru Dental School, University of São Paulo-Bauru, SP, Brazil
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Abstract
AbstractIt was the aim of this study to assess fluoride retained in saliva after use of fluoride-containing tablet DENTTABS® compared to toothpaste containing amine fluoride. Four subjects (2 normal saliva secretors, 1 slow secretor, and 1 fast secretor) participated in this crossover study comparing DENTTABS® and ELMEX®. After baseline sample collection, calibrated study personnel brushed the subjects’ teeth with the assigned product for 3 minutes. Saliva samples were taken at baseline (T0), immediately after brushing (T1) and then 10 (T2), 25 (T3) and 85 (T4) minutes post-brushing. The amount of saliva collected was measured, and the fluoride content was analysed. All 4 subjects repeated all study cycles 5 times. Statistical analysis was done using the Mann-Whitney-U test and Spearman correlation. The fluoride retention was significantly higher after brushing with DENTTABS® at T1 and T2. There was a correlation between individual salivary flow rate and the F- content. Flow rate in g/min ranged from 1.1 to 3.8 at T1 and from 0.2 to 1.1 at T4 with much higher F- retention in slow secreting cycles. The saliva fluoride clearance kinetics of two equal amounts of fluoride-containing oral hygiene products demonstrate higher retention for DENTTABS®.
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23
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Magalhães AC, Rios D, Martinhon CCR, Delbem ACB, Buzalaf MAR, Machado MADAM. The influence of residual salivary fluoride from dentifrice on enamel erosion: an in situ study. Braz Oral Res 2009; 22:67-71. [PMID: 18425248 DOI: 10.1590/s1806-83242008000100012] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2006] [Accepted: 05/08/2007] [Indexed: 11/21/2022] Open
Abstract
The objective of this study was to assess the salivary residual effect of fluoride dentifrice on human enamel subjected to an erosive challenge. This crossover in situ study was performed in two phases (A and B), involving ten volunteers. In each phase, they wore acrylic palatal appliances, each containing 3 human enamel blocks, during 7 days. The blocks were subjected to erosion by immersion of the appliances in a cola drink for 5 minutes, 4 times a day. Dentifrice was used to brush the volunteers teeth, 4 times a day, during 1 minute, before the appliance was replaced into the mouth. In phases A and B the dentifrices used had the same formulation, except for the absence (PD) or presence (FD) of fluoride, respectively. Enamel alterations were determined using profilometry, microhardness (%SMHC), acid- and alkali-soluble F analysis. The data were tested using ANOVA (p < 0.05). The concentrations (mean +/- SD) of alkali- and acid-soluble F (microgF/cm(2)) were, respectively, PD: 1.27 feminine +/- 0.70/2.24A +/- 0.36 and FD: 1.49 feminine +/- 0.44/2.24A +/- 0.67 (p > 0.05). The mean wear values (+/- SD, microm) were PD: 3.63 feminine +/- 1.54 and FD: 3.54 feminine +/- 0.90 (p > 0.05). The mean %SMHC values (+/- SD) were PD: 89.63 feminine +/- 4.73 and FD: 87.28 feminine +/- 4.01 (p > 0.05). Thus, we concluded that the residual fluoride from the fluoride-containing dentifrice did not protect enamel against erosion.
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Affiliation(s)
- Ana Carolina Magalhães
- Department of Child and Social Dentistry, School of Dentistry of Araçatuba, São Paulo State University
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24
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Abstract
An in vitro pH cycling model was used to test the hypothesis that the effects of 3 different fluoride compounds on de/remineralization are a function of the free fluoride ion concentration. Groups of 10 human enamel specimens were treated with one of: (a) amine fluoride (AmF), 1250 ppm F; (b) sodium monofluorophosphate (NaMFP), 1000 ppm F; (c) sodium fluoride (NaF), 1100 ppm F; (d) NaF, 250 ppm F; (e) Placebo (< 1 ppm F) dentifrices; or with aqueous solutions (f) NaF 900 ppm F or (g) NaF 30 ppm F. Lesions were assessed by cross-sectional microhardness. Mean +/- SEM DeltaZ (vol.% x microm) values of 3 dentifrices were: (a) 344 +/- 155, (b) 4259 +/- 257, and (c) 591 +/- 83. The AmF (1250 ppm F) was not statistically significantly different from the NaF (1100 ppm F) dentifrice in this model. The NaMFP (1000 ppm F) dentifrice, without hydrolysis, had only the same efficacy as the NaF (30 ppm F) aqueous solution.
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Affiliation(s)
- S Toda
- Division of Oral Health, Department of Health Science, Kanagawa Dental College, Japan
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25
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Dermal sensitization quantitative risk assessment (QRA) for fragrance ingredients. Regul Toxicol Pharmacol 2007; 52:3-23. [PMID: 18406028 DOI: 10.1016/j.yrtph.2007.10.008] [Citation(s) in RCA: 204] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2007] [Accepted: 10/04/2007] [Indexed: 11/20/2022]
Abstract
Based on chemical, cellular, and molecular understanding of dermal sensitization, an exposure-based quantitative risk assessment (QRA) can be conducted to determine safe use levels of fragrance ingredients in different consumer product types. The key steps are: (1) determination of benchmarks (no expected sensitization induction level (NESIL)); (2) application of sensitization assessment factors (SAF); and (3) consumer exposure (CEL) calculation through product use. Using these parameters, an acceptable exposure level (AEL) can be calculated and compared with the CEL. The ratio of AEL to CEL must be favorable to support safe use of the potential skin sensitizer. This ratio must be calculated for the fragrance ingredient in each product type. Based on the Research Institute for Fragrance Materials, Inc. (RIFM) Expert Panel's recommendation, RIFM and the International Fragrance Association (IFRA) have adopted the dermal sensitization QRA approach described in this review for fragrance ingredients identified as potential dermal sensitizers. This now forms the fragrance industry's core strategy for primary prevention of dermal sensitization to these materials in consumer products. This methodology is used to determine global fragrance industry product management practices (IFRA Standards) for fragrance ingredients that are potential dermal sensitizers. This paper describes the principles of the recommended approach, provides detailed review of all the information used in the dermal sensitization QRA approach for fragrance ingredients and presents key conclusions for its use now and refinement in the future.
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26
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Karlsson L, Lindgren LE, Trollsås K, Angmar-Månsson B, Tranaeus S. Effect of supplementary amine fluoride gel in caries-active adolescents. A clinical QLF study. Acta Odontol Scand 2007; 65:284-91. [PMID: 17851827 DOI: 10.1080/00016350701620644] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVE To investigate whether supplementary daily use of amine fluoride toothpaste with weekly brushing with amine fluoride gel enhances the remineralization of white spot lesions on smooth surfaces and also to investigate the possible effect of this treatment on salivary bacterial counts and oral hygiene. MATERIAL AND METHODS The participants comprised 135 caries-active adolescents living in suburban Stockholm. They were given an amine fluoride dentifrice (1250 ppm F) to be used twice a day, and either a test gel (4000 ppm F) or a placebo gel for brushing for 2 min once a week. During the 12-month study period, the subjects were recalled every 3rd month (baseline, 3, 6, 9, and 12 months). At each visit, DF(average change in fluorescence, in%) and lesion area (in mm2) were measured using quantitative light-induced fluorescence(QLF), followed by dietary counseling, oral hygiene instruction, and professional tooth-cleaning. At baseline, 6, and 12 months, saliva was sampled for Streptococcus mutans and lactobacillus counts, and gingival bleeding index was registered. RESULTS QLF indicated no enhancement of remineralization of white spot lesions by additional weekly brushing with amine fluoride gel. No inter-group differences emerged with regard to salivary bacterial counts. However, the oral hygiene of both groups improved, with a strong significance over time. CONCLUSION Adjunctive weekly brushing of amine fluoride gel achieved no significant enhancement of remineralization of white spot lesions monitored with the QLF method.
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Affiliation(s)
- Lena Karlsson
- Department of Cariology and Endodontology, Institute of Odontology, Karolinska Institutet, Huddinge, Sweden.
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Heijnsbroek M, Gerardu VAM, Buijs MJ, van Loveren C, ten Cate JM, Timmerman MF, van der Weijden GA. Increased Salivary Fluoride Concentrations after Post-Brush Fluoride Rinsing Not Reflected in Dental Plaque. Caries Res 2006; 40:444-8. [PMID: 16946615 DOI: 10.1159/000094292] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2005] [Accepted: 11/28/2005] [Indexed: 11/19/2022] Open
Abstract
The aim of the present study was to assess fluoride concentrations in unstimulated saliva and buccal dental plaque 6 h after an oral hygiene procedure that consisted of brushing with an AmF/SnF2 dentifrice and different post-brush rinsing protocols: expectorating the excess of dentifrice foam and rinsing with tap water, expectorating only, or rinsing with 10 ml AmF/SnF2 mouthwash. The fluoride concentrations in plaque and saliva were increased after all three experimental protocols compared to F-free periods. The increase of the fluoride concentration in saliva was more pronounced after AmF/SnF2 mouthrinse as compared to rinsing with water and expectorating the excess of dentifrice foam. Such an effect was not seen in dental plaque. It is concluded that the potentially beneficial effect of not rinsing or fluoride rinsing after tooth brushing is not reflected in an increased fluoride concentration in newly formed dental plaque 6 h after brushing.
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Affiliation(s)
- M Heijnsbroek
- Department of Periodontology, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands
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28
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Gerardu VAM, van Loveren C, Heijnsbroek M, Buijs MJ, van der Weijden GA, ten Cate JM. Effects of Various Rinsing Protocols after the Use of Amine Fluoride/Stannous Fluoride Toothpaste on the Acid Production of Dental Plaque and Tongue Flora. Caries Res 2006; 40:245-50. [PMID: 16707874 DOI: 10.1159/000092233] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2005] [Accepted: 08/11/2005] [Indexed: 11/19/2022] Open
Abstract
The aim of this clinical study was to evaluate the effect of various rinsing protocols on oral acid production 6 h after tooth brushing with an amine fluoride/stannous fluoride (AmF/SnF2) toothpaste. After a 14-day period of using F-free toothpaste, 30 participants followed three experimental protocols each, followed by F-free washout periods in a randomized crossover trial. They used AmF/SnF2 toothpaste twice daily for 1 week, and after brushing, they either rinsed with tap water, omitted the post-brush rinse, or rinsed with an AmF/SnF2 mouthwash. In the F-free washout periods, the participants brushed their teeth without further instructions. Six hours after the last brushing (+/-rinsing) of each period, subjects rinsed with 10 ml 10% sucrose solution for 2 min. A tongue film sample and a buccal plaque sample were taken 4 and 8 min after the sucrose challenge, respectively. Metabolic acid ions were determined by capillary electrophoresis. The results show that (1) omitting the post-brush water rinse did not reduce the production of lactic, acetic or minor acids in plaque, nor on the tongue, and that (2) the additional use of AmF/SnF2 mouthwash after brushing reduced the acid production in plaque and tongue samples for at least 6 h. The distributions of acids produced in the plaque or tongue samples were not statistically different between experimental periods. It is concluded that an increase in the antimetabolic effect of AmF/SnF2 toothpaste in between two daily brushing exercises is not achieved by omitting the post-brush water rinse. The additional use of AmF/SnF2 mouthwash after brushing is effective in reducing the acid metabolism in dental plaque and tongue flora.
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Affiliation(s)
- V A M Gerardu
- Department of Cariology, Endodontology, Pedodontology, Academic Centre for Dentistry Amsterdam (ACTA), Amsterdam, The Netherlands.
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Oral fluoride retention in saliva following toothbrushing with child and adult dentifrices with and without water rinsing. Br Dent J 2004. [DOI: 10.1038/sj.bdj.4811232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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