| "Descrizione" by Nat45 (5786 pt) | 2025-Jan-07 14:28 |
| Evaluation | N. Experts | Evaluation | N. Experts |
|---|---|---|---|
| 1 | 6 | ||
| 2 | 7 | ||
| 3 | 8 | ||
| 4 | 9 | ||
| 5 | 10 |
L’Ascorbato di sodio, il sale sodico dell’acido ascorbico (vitamina C), è un composto idrosolubile ampiamente utilizzato nei cosmetici, nell’alimentazione e nei prodotti farmaceutici. Conosciuto per le sue proprietà antiossidanti, protegge la pelle dallo stress ossidativo, supporta la sintesi del collagene e migliora il tono cutaneo. Nelle formulazioni agisce come stabilizzante e conservante, rendendolo un ingrediente versatile nei prodotti per la cura della pelle e anti-età.
L’Ascorbato di Sodio ha la formula chimica C6H7NaO6.
Struttura principale:
Proprietà:
Neutralizzazione:
Purificazione:
Essiccazione e confezionamento:
Integrazione di vitamina C:
Terapia antiossidante:
Protezione antiossidante:
Sintesi del collagene:
Effetto schiarente:
Stabilizzante:
Biodegradabilità:
Profilo di sicurezza:
Sostenibilità:
Studi
Alimentazione
E' un antiossidante usato per lo più in campo alimentare dove è etichettato col numero E301 nella lista degli additivi alimentari europei.
Medicina
In odontoiatria trova impiego nello sbiancamento dei denti (1) e come legante contro microinfiltrazioni (2).
Cosmetica
Agente antiossidante. Ingrediente che contrasta lo stress ossidativo e che evita danni cellulari. I radicali liberi, i processi infiammatori patologici, le specie reattive dell'azoto e le specie reattive dell'ossigeno sono responsabili del processo di invecchiamento e di molte malattie causate dall'ossidazione.
![]() | ![]() |
Formula molecolare: C6H7O6Na C6H7NaO6
Peso molecolare: 198.106 g/mol
CAS: 134-03-2 58657-35-5
EC Number: 205-126-1
UNIII: S033EH8359
Sinonimi:
Bibliografia____________________________________________________________________
(1) Güler E, Gönülol N, Özyilmaz ÖY, Yücel AÇ. Effect of sodium ascorbate on the bond strength of silorane and methacrylate composites after vital bleaching. Braz Oral Res. 2013 Jul-Aug;27(4):299-304. doi: 10.1590/s1806-83242013000400002.
Abstract. We investigated the effect of sodium ascorbate (SA) on the microtensile bond strengths (MTBSs) of different composites to bovine enamel after vital bleaching with hydrogen peroxide (HP) or carbamide peroxide (CP). Thirty bovine incisors were randomly divided into five groups and treated with no bleaching application (control), 35% HP alone, 35% HP+10% SA for 10 minutes (HP+SA), 16% CP alone, or 16% CP+10% SA for 10 minutes (CP+SA). Specimens were restored with Silorane adhesive and Filtek Silorane composite (designated as S/group) or with Clearfil SE bond and Filtek Supreme XT (designated as F/group). Composite build-up was created on the enamel. Sectioned specimens (n=10 per group; 1 mm2; cross-sectional area) were created and stressed in a universal testing machine at 1 mm/min crosshead speed. The application of 10% SA immediately after bleaching with 16% CP or 35% HP increased the enamel MTBS, regardless of the adhesive/composite resin used. The resulting MTBS values were similar to those of the control groups. Use of 16% CP and 35% HP alone decreased the enamel MTBS, regardless of the adhesive/composite resin used, with F/CP+SA=F/HP+SA=F/CP=S/CP+SA=S/HP+SA=S/C>S/CP=S/HP=F/CP=F/HP (p<0.05). We concluded that the application of SA for 10 minutes immediately after vital bleaching increases the enamel BS for dimethacrylate- and silorane-based composites.
(2) Yoon M, Burrow MF, Wong R, Parashos P. Effect of sodium ascorbate on resin bonding to sodium perborate-bleached dentin. Oper Dent. 2014 Jan-Feb;39(1):98-106. doi: 10.2341/12-516-L.
Abstract. SUMMARY This was an in vitro study to evaluate the effect of sodium ascorbate on the microshear bond strength (MSBS) of resin composite to sodium perborate-bleached dentin. Molar dentin sections were divided into six groups: 1) control, 2) sodium perborate (SP) bleach and immediate bonding, 3) SP and 30 second sodium ascorbate (SA); 4) SP and 1 minute SA; 5) SP and 2 minute SA; and 6) SP and 7 day delay before bonding. They were further divided into two-step self-etching (Clearfil SE Bond) or all-in-one self-etching (Xeno IV) adhesive systems. Resin composite microtubes were bonded according to dentin location-center, pulp horn, and peripheral positions-and an MSBS test was carried out. Failure mode was determined using light microscopy and scanning electron microscopy. There were no significant differences between the treatment types/groups. MSBSs were significantly higher for two-step self-etching adhesive compared with all-in-one self-etching adhesive (p=0.028). For the all-in-one adhesive, MSBSs at the center and pulp horn positions were significantly lower than the peripheral positions (p<0.001). All-in-one groups had significantly more adhesive failures than two-step adhesive groups (p=0.015). The odds of adhesive failure were higher at the pulp horn position than the peripheral position (p=0.004). Sodium perborate bleaching of dentin had no effect on MSBS or mode of failure for either two-step or all-in-one self-etching adhesives; therefore, the effect of sodium ascorbate was negligible. The two-step adhesive groups demonstrated the highest MSBS, and the all-in-one groups, when bonded to center and pulp horn dentin, exhibited the lowest MSBS.
Park JY, Kwon TY, Kim YK. Effective application duration of sodium ascorbate antioxidant in reducing microleakage of bonded composite restoration in intracoronally-bleached teeth. Restor Dent Endod. 2013 Feb;38(1):43-7. doi: 10.5395/rde.2013.38.1.43.
Abstract. Objectives: The aim of this study was to determine an appropriate application duration of sodium ascorbate (SA) antioxidant gel in reducing microleakage of bonded composite restoration in intracoronally-bleached teeth....Results: Group IB showed a significantly higher microleakge than the control group (p = 0.006) and group DB a statistically similar score to the control group (p > 0.999). Although groups S10m, S60m, and S24h exhibited significantly higher scores than group DB (p < 0.05), the microleakage in groups S3d and S7d was statistically similar to that in group DB (p = 0.771, p > 0.999). Conclusions: Application of SA gel for 3 day after nonvital bleaching was effective in reducing microleakage of composite restoration in intracoronally-bleached teeth.
| Evaluate |