Publicação
Teeth discoloration after regenerative endodontic procedures with calcium silicate cements
| Resumo: | Introduction: The aim of the present ex vivo study was to assess and compare coronal discoloration induced by four endodontic biomaterials used in regenerative endodontic procedures – TotalFill BC RRMTM putty (Brasseler), PulpGuard (Coltene), BiodentineTM (Septodont) and ProRoot MTA (Dentisply). Methods: Fifty-four teeth were sectioned perpendicular to its long axis, 2 mm apical to the cementoenamel junction and prepared from the apical aspect. After the preparation of apical access to the pulp chamber, specimens were randomly divided into 10 groups: group 1, negative control (n=3); group 2, positive control (n=3); group 3, TotalFill BC RRMTM putty + saline (n=6); group 4, TotalFill BC RRMTM putty + blood (n=6); group 5, PulpGuard + saline (n=6); group 6, PulpGuard + blood (n=6); group 7, BiodentineTM + saline (n=6); group 8, BiodentineTM + blood (n=6); group 9, ProRoot MTA + saline (n=6); group 10, ProRoot MTA + blood (n=6). After filling, the teeth were sealed with SDR Flow+ Bulk Fill Flowable A2 (Dentisply Caulk, Milford, USA). Color was assessed at baseline (before material placement), immediately after material filing, after 72 hours of storage, after 7 days of storage and after 4 weeks (1 month) of storage, using the Comission International de l’Eclairage L*a*b* system. Color changes, ∆E, was compared amoung the different groups and over time.Results: There are significant differences regarding biomaterial’s color variation (∆E), considering material, treatment or both. If solely material or treatment is considered regardless time, there are no statistical significant differences. Concerning the obtained results for T1M, Biodentine is the material with better color stability, followed by PulpGuard and TotallFill BC, and MTA is the material with lowest color stability.Conclusions: After a 1-month period of evaluation, blood exposure might not be a critical factor in biomaterials color variation. Biodentine shows the greatest color stability and MTA presented the lowest, consequently leading to an increase of tooth discoloration over time. The selection of the biomaterial should consider material’s discoloration potential. |
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| Autores principais: | Santos, Joana Isabel de Pinho |
| Assunto: | Biodentine PulpGuard TotalFill BC RRM putty mineral trioxide aggregate regenerative endodontic procedures tooth discoloration vital pulp therapy |
| Ano: | 2019 |
| País: | Portugal |
| Tipo de documento: | dissertação de mestrado |
| Tipo de acesso: | acesso embargado |
| Instituição associada: | Universidade de Coimbra |
| Idioma: | inglês |
| Origem: | Estudo Geral - Universidade de Coimbra |
| Resumo: | Introduction: The aim of the present ex vivo study was to assess and compare coronal discoloration induced by four endodontic biomaterials used in regenerative endodontic procedures – TotalFill BC RRMTM putty (Brasseler), PulpGuard (Coltene), BiodentineTM (Septodont) and ProRoot MTA (Dentisply). Methods: Fifty-four teeth were sectioned perpendicular to its long axis, 2 mm apical to the cementoenamel junction and prepared from the apical aspect. After the preparation of apical access to the pulp chamber, specimens were randomly divided into 10 groups: group 1, negative control (n=3); group 2, positive control (n=3); group 3, TotalFill BC RRMTM putty + saline (n=6); group 4, TotalFill BC RRMTM putty + blood (n=6); group 5, PulpGuard + saline (n=6); group 6, PulpGuard + blood (n=6); group 7, BiodentineTM + saline (n=6); group 8, BiodentineTM + blood (n=6); group 9, ProRoot MTA + saline (n=6); group 10, ProRoot MTA + blood (n=6). After filling, the teeth were sealed with SDR Flow+ Bulk Fill Flowable A2 (Dentisply Caulk, Milford, USA). Color was assessed at baseline (before material placement), immediately after material filing, after 72 hours of storage, after 7 days of storage and after 4 weeks (1 month) of storage, using the Comission International de l’Eclairage L*a*b* system. Color changes, ∆E, was compared amoung the different groups and over time.Results: There are significant differences regarding biomaterial’s color variation (∆E), considering material, treatment or both. If solely material or treatment is considered regardless time, there are no statistical significant differences. Concerning the obtained results for T1M, Biodentine is the material with better color stability, followed by PulpGuard and TotallFill BC, and MTA is the material with lowest color stability.Conclusions: After a 1-month period of evaluation, blood exposure might not be a critical factor in biomaterials color variation. Biodentine shows the greatest color stability and MTA presented the lowest, consequently leading to an increase of tooth discoloration over time. The selection of the biomaterial should consider material’s discoloration potential. |
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