5 research outputs found

    Discoloration of nano composite resin by everyday drinks:in vitro study

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    The everyday consumption of various drinks has immediate affect on the composite resin materials extrinsic look. This changes mainly manifest as a change in the aesthetic appearance of human teeth which is why thru scientific researches we need to eliminate the possibility of such discolorations. For this research were made 30 discs of nano composite resin material Artiste, 2 mm thick and 15 mm in diameter. As colorants were used drinks like red wine, coca cola, filter coffee, aronia tea and distilled water as control group. Three color measurements were made by spectrophotometer X-RITE RM 200 which results will be used as basic, middle and final discoloration change on the composite discs. The results were evaluated thru the CIE L*a*b* system for colorimetric analysis which specified the warm colorants lead to rather bigger discolorations than the ones used on room temperature. The biggest discoloration was noticed in tea (Ξ”E*=31,83) followed by coffee (Ξ”E*=23,23) and wine (Ξ”E*=19,11). Coca cola (Ξ”E*=0,28) was the only colorant that did not cross the clinically acceptable threshold of Ξ”2.7. Within the limitations of this study was acknowledged that some everyday drinks have rather bigger discoloration effect on the composite resin materials than others. Keywords: nano composite resin, colorants, discolorations, spectrophotomete

    The effect of every day drinks on composite restorations aesthetics: in vitro study

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    Abstract: Aim: The main objectives of this in vitro study is, within its limitations, is to evaluate whether every day drinks affect the aesthetics of the dental composite resin materials. Method: Thirty microhybrid composite resin (Gradia Direct) discs were made (15 mm in diameter and 2mm thick) and randomly divided into five groups. The groups were immersed in colorants as red wine, coca-cola, filter coffee, aronia tea and distilled water as control group. Spectrophotometer X-RITE RM 200 was used to follow the changes in color with three measurements, first one at the beginning (baseline), second at the middle, third at the end of the research. Each group was immersed in its colorant twice a day for the duration of the study. The received data was analyzed according the CIE L*a*b* color system. Result: Three out of four colorants have surpassed the clinically acceptable threshold of discoloration which is Ξ”2.7. Significant discoloration was observed with the warm drinks compared with the ones used on room temperature. The tea caused most significant discoloration (Ξ”22.17) followed by coffee (Ξ”16.73) and wine (Ξ”12.10). The drink that cased the least discoloration was the coca-cola (Ξ”1.24). Conclusion: The color stability of the composite resin restorations is affected by the everyday drinks that are consumed, from some more than others. Key words: discoloration; composite resin; spectrophotometer

    Π’Π»ΠΈΡ˜Π°Π½ΠΈΠ΅Ρ‚ΠΎ Π½Π° Ρ€Π°Π·Π»ΠΈΡ‡Π½ΠΈ ΠΏΡ€Π΅Ρ…Ρ€Π°ΠΌΠ±Π΅Π½ΠΈ ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚ΠΈ Π²Ρ€Π· ΠΊΠΎΠ»ΠΎΡ€ΠΈΡ‚ΠΎΡ‚ Π½Π° ΠΊΠΎΠΌΠΎΠ·ΠΈΡ‚Π½ΠΈΡ‚Π΅ рСставрации-in vitro Π΅Π²Π°Π»ΡƒΠ°Ρ†ΠΈΡ˜Π°

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    Π¦Π΅Π» ΠΈ Π·Π°Π΄Π°Ρ‡ΠΈ: Π¦Π΅Π»Ρ‚Π° Π½Π° докторскиот Ρ‚Ρ€ΡƒΠ΄ Π½ΠΈ бСшС Π΄Π° Π½Π°ΠΏΡ€Π°Π²ΠΈΠΌΠ΅ ΠΏΡ€ΠΎΡ†Π΅Π½ΠΊΠ° Π½Π° Π²Π»ΠΈΡ˜Π°Π½ΠΈΠ΅Ρ‚ΠΎ Π½Π° Ρ€Π°Π·Π»ΠΈΡ‡Π½ΠΈΡ‚Π΅ ΠΏΡ€Π΅Ρ…Ρ€Π°Π½Π±Π΅Π½ΠΈ ΠΏΡ€ΠΎΠ΄ΡƒΠΊΡ‚ΠΈ Π²Ρ€Π· ΠΏΠΎΡΡ‚ΠΎΡ˜Π°Π½ΠΎΡΡ‚Π° Π½Π° Π±ΠΎΡ˜Π°Ρ‚Π° Π½Π° ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½ΠΈΡ‚Π΅ рСставрации, Π²ΠΎ in vitro услови. Како ΠΏΡ€Π΅Π΄ΠΌΠ΅Ρ‚ Π½Π° ΠΈΡΠΏΠΈΡ‚ΡƒΠ²Π°ΡšΠ΅ Π½ΠΈ бишС Π΄Π° сС Π½Π°ΠΏΡ€Π°Π²ΠΈ Π°Π½Π°Π»ΠΈΠ·Π° ΠΈ ΠΏΡ€ΠΎΡ†Π΅Π½ΠΊΠ° ΠΊΠΎΠΈ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½ΠΈ смоли сС најподлоТни Π½Π° ΠΏΡ€ΠΎΠΌΠ΅Π½Π°Ρ‚Π° Π½Π° Π±ΠΎΡ˜Π°Ρ‚Π° Π²ΠΎ симулирани услови ΠΎΠ΄ усната ΡˆΡƒΠΏΠ»ΠΈΠ½Π°, односно Π΄Π°Π»ΠΈ ΠΏΠΎΠ»ΠΈΡ€Π°ΡšΠ΅Ρ‚ΠΎ Π½Π° ΠΏΠΎΠ²Ρ€ΡˆΠΈΠ½Π°Ρ‚Π° Π½Π° ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½ΠΈΡ‚Π΅ смоли ΠΈΠΌΠ° ΡƒΠ»ΠΎΠ³Π° Π²ΠΎ ΠΏΡ€ΠΎΠΌΠ΅Π½Π°Ρ‚Π° Π½Π° СстСтиката Π½Π° иститС. Како посСбни Π·Π°Π΄Π°Ρ‡ΠΈ Π²ΠΎ Π΄ΠΈΡΠ΅Ρ€Ρ‚Π°Ρ†ΠΈΡ˜Π°Ρ‚Π° бСшС Π΅Π²Π°Π»ΡƒΠΈΡ€Π°Π½Π° моТноста Π½Π° Π΄ΠΈΡΠΊΠΎΠ»ΠΎΡ€Π°Ρ†ΠΈΡ˜Π°Ρ‚Π° Π½Π° Ρ€Π°Π·Π»ΠΈΡ‡Π½ΠΈΡ‚Π΅ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½ΠΈ смоли – Π½Π°Π½ΠΎ, Ρ…ΠΈΠ±Ρ€ΠΈΠ΄Π½ΠΈ ΠΈ ΠΌΠΈΠΊΡ€ΠΎΡ…ΠΈΠ±Ρ€ΠΈΠ΄Π½ΠΈ, односно Π΄Π° сС ΠΏΡ€ΠΎΡ†Π΅Π½ΠΈ Ρ€Π΅Π»Π°Ρ†ΠΈΡ˜Π°Ρ‚Π° ΠΏΠΎΠΌΠ΅Ρ“Ρƒ ΠΏΡ€Π΅Π±ΠΎΡ˜ΡƒΠ²Π°ΡšΠ΅Ρ‚ΠΎ ΠΈ хСмиската структура Π½Π° ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚ΠΈΡ‚Π΅. Π’ΠΎΠ΅Π΄Π½ΠΎ Π΄Π° сС ΠΎΠ΄Ρ€Π΅Π΄ΠΈ Π²Π»ΠΈΡ˜Π°Π½ΠΈΠ΅Ρ‚ΠΎ Π½Π° Ρ€Π°Π·Π»ΠΈΡ‡Π½ΠΈΡ‚Π΅ Π½Π°ΠΏΠΈΡ‚ΠΎΡ†ΠΈ Π²Ρ€Π· ΠΏΡ€ΠΎΠΌΠ΅Π½Π°Ρ‚Π° Π½Π° Π±ΠΎΡ˜Π°Ρ‚Π° Π½Π° СстСтскитС рСставрации ΠΈ Π΄Π° сС ΠΏΡ€ΠΎΡ†Π΅Π½ΠΈ Π΄Π°Π»ΠΈ Ρ‚Π΅ΠΌΠΏΠ΅Ρ€Π°Ρ‚ΡƒΡ€Π°Ρ‚Π° Π½Π° ΠΏΠΈΡ˜Π°Π»Π°Ρ†ΠΈΡ‚Π΅ ΠΈΠΌΠ° влијаниС Π½Π° ΠΏΡ€ΠΎΠΌΠ΅Π½Π°Ρ‚Π° Π½Π° Π±ΠΎΡ˜Π°Ρ‚Π°. ΠœΠ΅Ρ‚ΠΎΠ΄ ΠΈ ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΡ˜Π°Π»ΠΈ: Π—Π° Ρ€Π΅Π°Π»ΠΈΠ·Π°Ρ†ΠΈΡ˜Π° Π½Π° СкспСримСнталната ΠΏΡ€ΠΎΡ†Π΅Π΄ΡƒΡ€Π° Π²ΠΎ докторската Π΄ΠΈΡΠ΅Ρ€Ρ‚Π°Ρ†ΠΈΡ˜Π° Π±Π΅Π° користСни Ρ‚Ρ€ΠΈ Ρ€Π°Π·Π»ΠΈΡ‡Π½ΠΈ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½ΠΈ смоли со високи СстСтски пСформанси. Π’ΠΊΡƒΠΏΠ½ΠΎ Π±Π΅Π° ΠΈΠ·Ρ€Π°Π±ΠΎΡ‚Π΅Π½ΠΈ 90 дискови, ΠΏΠΎ 30 дискови ΠΎΠ΄ Ρ‚Ρ€ΠΈΡ‚Π΅ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½ΠΈ смоли, ΠΌΠΈΠΊΡ€ΠΎΡ…ΠΈΠ±Ρ€ΠΈΠ΄Π½Π°, Π½Π°Π½ΠΎ ΠΈ Π½Π°Π½ΠΎΡ…ΠΈΠ±Ρ€ΠΈΠ΄Π½Π°, со Π½ΠΈΡ˜Π°Π½ΡΠ°Ρ‚Π° А2. Π£ΠΏΠΎΡ‚Ρ€Π΅Π±Π΅Π½ΠΈΡ‚Π΅ ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΡ˜Π°Π»ΠΈ Π±Π΅Π° ΠΈΠ·Ρ€Π°Π±ΠΎΡ‚Π΅Π½ΠΈ Π²ΠΎ Ρ„ΠΎΡ€ΠΌΠ° Π½Π° дискови Π²ΠΎ ΠΏΡ€Π΅Ρ‚Ρ…ΠΎΠ΄Π½ΠΎ ΠΈΠ·Ρ€Π°Π±ΠΎΡ‚Π΅Π½ ΠΌΠΎΠ΄Π΅Π», Π³Ρ€ΡƒΠΏΠΈΡ€Π°Π½ΠΈ спорСд Ρ‚ΠΈΠΏ Π½Π° ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚ ΠΈ Π·Π°Π²Ρ€ΡˆΠ½Π° ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠ°. ВСстирани ΠΏΠΎΡ‚Π΅Π½Ρ†ΠΈΡ˜Π°Π»Π½ΠΈ ΠΏΡ€Π΅Π±ΠΎΡ˜ΡƒΠ²Π°Ρ‡ΠΈ Π±Π΅Π° ΠΏΠΎΡ‚ΠΎΠΏΡƒΠ²Π°Π½ΠΈ Π²ΠΎ ΠΊΠ°Ρ„Π΅, Ρ‡Π°Ρ˜ ΠΎΠ΄ Π°Ρ€ΠΎΠ½ΠΈΡ˜Π°, Кока-ΠΊΠΎΠ»Π°, Ρ†Ρ€Π²Π΅Π½ΠΎ Π²ΠΈΠ½ΠΎ ΠΈ дСстилирана Π²ΠΎΠ΄Π° ΠΊΠ°ΠΊΠΎ ΠΊΠΎΠ½Ρ‚Ρ€ΠΎΠ»Π½Π° Π³Ρ€ΡƒΠΏΠ°. ΠŸΡ€ΠΈΠΌΠ΅Ρ€ΠΎΡ†ΠΈΡ‚Π΅ сС ΠΏΠΎΡ‚ΠΎΠΏΡƒΠ²Π°Π° Π΄Π²Π° ΠΏΠ°Ρ‚ΠΈ Π΄Π½Π΅Π²Π½ΠΎ Π²ΠΎ ΠΏΠ΅Ρ€ΠΈΠΎΠ΄ ΠΎΠ΄ 14 Π΄Π΅Π½ΠΎΠ²ΠΈ, Π΄ΠΎΠ΄Π΅ΠΊΠ° Π²ΠΎ останатиот ΠΏΠ΅Ρ€ΠΈΠΎΠ΄ ΠΎΠ΄ Π΄Π΅Π½ΠΎΡ‚ сС Ρ‡ΡƒΠ²Π°Π° Π²ΠΎ Π²Π΅ΡˆΡ‚Π°Ρ‡ΠΊΠ° салива. Π˜Π·ΠΌΠ΅Π½ΠΈΡ‚Π΅ сС ΠΏΡ€Π°Ρ‚Π΅Π° со помош Π½Π° спСктрофотомСтар X – RITE Model RM200. Π‘Π°Π·ΠΈΡ‡Π½ΠΎ ΠΌΠ΅Ρ€Π΅ΡšΠ΅ сС Π½Π°ΠΏΡ€Π°Π²ΠΈ послС Ρ…ΠΈΠ΄Ρ€Π°Ρ‚Π°Ρ†ΠΈΠΎΠ½ΠΈΠΎΡ‚ ΠΏΠ΅Ρ€ΠΈΠΎΠ΄ ΠΎΠ΄ 24 часа ΠΈ ΠΏΡ€Π΅Π΄ ΠΏΡ€Π²ΠΎΡ‚ΠΎ ΠΏΠΎΡ‚ΠΎΠΏΡƒΠ²Π°ΡšΠ΅ Π½Π° дисковитС. ΠšΠΎΠ½Ρ‚Ρ€ΠΎΠ»Π½ΠΎ ΠΌΠ΅Ρ€Π΅ΡšΠ΅ бСшС Π½Π°ΠΏΡ€Π°Π²Π΅Π½ΠΎ Π½Π° сСдмиот Π΄Π΅Π½ ΠΈ Π΄Π΅Ρ„ΠΈΠ½ΠΈΡ‚ΠΈΠ²Π½ΠΎΡ‚ΠΎ ΠΌΠ΅Ρ€Π΅ΡšΠ΅ послС ΠΏΠ΅Ρ€ΠΈΠΎΠ΄ΠΎΡ‚ Π½Π° Ρ‚Π΅ΡΡ‚ΠΈΡ€Π°ΡšΠ΅, односно Π½Π° чСтиринаСсСттиот Π΄Π΅Π½. Π”ΠΎΠ±ΠΈΠ΅Π½ΠΈΡ‚Π΅ Ρ€Π΅Π·ΡƒΠ»Ρ‚Π°Ρ‚ΠΈ сС Π°Π½Π°Π»ΠΈΠ·ΠΈΡ€Π°Π½ΠΈ спорСд CIE Lab-систСмот Π·Π° ΠΏΡ€ΠΎΠΌΠ΅Π½Π° Π½Π° боја. Π‘Π°Π·Π°Ρ‚Π° Π½Π° ΠΏΠΎΠ΄Π°Ρ‚ΠΎΡ†ΠΈ Π΅ Π°Π½Π°Π»ΠΈΠ·ΠΈΡ€Π°Π½Π° со статистичкитС ΠΏΡ€ΠΎΠ³Ρ€Π°ΠΌΠΈ STATISTICA 7.1 ΠΈ SPSS for Windows ver. 20, ΠΏΡ€Π΅ΠΊΡƒ one way ANOVA, post-hoc Bonferroni ΠΈ t-test for dependent samples. Π—Π° ΡΠΏΠΎΡ€Π΅Π΄ΡƒΠ²Π°ΡšΠ΅ Π½Π° ΠΏΠ°Ρ€Π°ΠΌΠ΅Ρ‚Ρ€ΠΈΡ‚Π΅ ΠΏΠΎΠΌΠ΅Ρ“Ρƒ врСмСнскитС Ρ‚ΠΎΡ‡ΠΊΠΈ Π²ΠΎ Ρ‚Ρ€ΠΈΡ‚Π΅ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½ΠΈ смоли Π±Π΅Π° користСни Π±Π΅Π° користСни нСпарамСтарски ΠΈ пармСтарски тСстови Π·Π° зависни ΠΏΡ€ΠΈΠΌΠ΅Ρ€ΠΎΡ†ΠΈ (Student – Ρ‚ test ΠΈ Wilcoxon mathed pairs test). Π Π΅Π·ΡƒΠ»Ρ‚Π°Ρ‚ΠΈ: Π Π΅Π·ΡƒΠ»Ρ‚Π°Ρ‚ΠΈΡ‚Π΅ ΠΏΠΎΠΊΠ°ΠΆΠ°Π° Π΄ΠΈΡΠΊΠΎΠ»ΠΎΡ€Π°Ρ†ΠΈΡ˜Π° кај Ρ‚Ρ€ΠΈΡ‚Π΅ Ρ‚ΠΈΠΏΠΎΠ²ΠΈ Π½Π° рСставративни ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½ΠΈ смоли ΠΎΠ΄ Π΄Π°Π΄Π΅Π½ΠΎΡ‚ΠΎ ΠΈΡΡ‚Ρ€Π°ΠΆΡƒΠ²Π°ΡšΠ΅ со Ρ‚ΠΎΠ° ΡˆΡ‚ΠΎ најголСмо ΠΏΡ€Π΅Π±ΠΎΡ˜ΡƒΠ²Π°ΡšΠ΅ имашС кај Π½Π°Π½ΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½Π°Ρ‚Π° (Ξ”Π•=19.78), ΠΏΠΎΠΌΠ°Π»ΠΎ ΠΏΡ€Π΅Π±ΠΎΡ˜ΡƒΠ²Π°ΡšΠ΅ имашС кај Π½Π°Π½ΠΎΡ…ΠΈΠ±Ρ€ΠΈΠ΄Π½Π°Ρ‚Π° смола (Ξ”Π•=14.38), ΠΈ најмало ΠΏΡ€Π΅Π±ΠΎΡ˜ΡƒΠ²Π°ΡšΠ΅ имашС кај ΠΌΠΈΠΊΡ€ΠΎΡ…ΠΈΠ±Ρ€ΠΈΠ΄Π½Π°Ρ‚Π° ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½Π° смола (Ξ”=12.82). ΠΠ°Ρ˜Π²ΠΈΡΠΎΠΊΠΈΡ‚Π΅ врСдности Π½Π° ΠΏΡ€Π΅Π±ΠΎΡ˜ΡƒΠ²Π°ΡšΠ΅ кај ситС смоли Π±Π΅Π° Π·Π°Π±Π΅Π»Π΅ΠΆΠ°Π½ΠΈ ΠΎΠ΄ Ρ‡Π°Ρ˜ΠΎΡ‚ (Ξ”Π•=24.89), слСдСн ΠΎΠ΄ ΠΊΠ°Ρ„Π΅Ρ‚ΠΎ (Ξ”Π•=20.23) ΠΈ Π²ΠΈΠ½ΠΎΡ‚ΠΎ (Ξ”Π•=14.88). Најмало ΠΏΡ€Π΅Π±ΠΎΡ˜ΡƒΠ²Π°ΡšΠ΅ бСшС Π·Π°Π±Π΅Π»Π΅ΠΆΠ°Π½ΠΎ ΠΎΠ΄ страна Π½Π° Кока-ΠΊΠΎΠ»Π° со врСдност ΠΎΠ΄ Ξ”Π•=2.64, ΠΈ прСтставува СдинствСн тСстиран ΠΊΠΎΠ»ΠΎΡ€Π°Π½Ρ‚ кој Π½Π΅ Π³ΠΎ Π½Π°Π΄ΠΌΠΈΠ½ΡƒΠ²Π° ΠΊΠ»ΠΈΠ½ΠΈΡ‡ΠΊΠΈ ΠΏΡ€ΠΈΡ„Π°Ρ‚Π»ΠΈΠ²ΠΈΠΎΡ‚ ΠΏΡ€Π°Π³ Π½Π° Ρ‚ΠΎΠ»Π΅Ρ€Π°Π½Ρ†ΠΈΡ˜Π° Π·Π° Ξ”Π• ΠΎΠ΄ 3.3, Π΄ΠΎΠ΄Π΅ΠΊΠ° ситС останати ΠΊΠΎΠ»ΠΎΡ€Π°Π½Ρ‚ΠΈ Π·Π½Π°Ρ‡ΠΈΡ‚Π΅Π»Π½ΠΎ Π³ΠΎ Π½Π°Π΄ΠΌΠΈΠ½ΡƒΠ²Π°Π°Ρ‚. НајголСмо ΠΏΠΎΠ΅Π΄ΠΈΠ½Π΅Ρ‡Π½ΠΎ ΠΏΡ€Π΅Ρ‡Π΅ΠΊΠΎΡ€ΡƒΠ²Π°ΡšΠ΅ Π½Π° ΠΏΡ€Π°Π³ΠΎΡ‚ Π½Π° ΠΊΠ»ΠΈΠ½ΠΈΡ‡ΠΊΠ° Ρ‚ΠΎΠ»Π΅Ρ€Π°Π½Ρ†ΠΈΡ˜Π° сС Π·Π°Π±Π΅Π»Π΅ΠΆΠ° ΠΎΠ΄ страна Π½Π° Ρ‡Π°Ρ˜ΠΎΡ‚ Π²Ρ€Π· Π½Π°Π½ΠΎΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½Π°Ρ‚Π° смола Artiste со врСдност ΠΎΠ΄ Ξ”Π•=32,88 Β± 8,4. Π—Π°ΠΊΠ»ΡƒΡ‡ΠΎΠΊ : Π’ΠΎ Ρ€Π°ΠΌΠΊΠΈΡ‚Π΅ со ΠΎΠ³Ρ€Π°Π½ΠΈΡ‡ΡƒΠ²Π°ΡšΠ°Ρ‚Π° Π½Π° ΠΎΠ²Π°Π° in vitro ΡΡ‚ΡƒΠ΄ΠΈΡ˜Π° ΠΎΠ΄ Π΄ΠΎΠ±ΠΈΠ΅Π½ΠΈΡ‚Π΅ Ρ€Π΅Π·ΡƒΠ»Ρ‚Π°Ρ‚ΠΈ Π·Π°ΠΊΠ»ΡƒΡ‡ΠΈΠ²ΠΌΠ΅ Π΄Π΅ΠΊΠ° ситС испитувани ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΡ˜Π°Π»ΠΈ Π±Π΅Π· Ρ€Π°Π·Π»ΠΈΠΊΠ° Π½Π° хСмиската структура Π±Π΅Π° ΠΏΠΎΠ΄Π»ΠΎΠΆΠ½ΠΈ Π½Π° ΠΏΡ€Π΅Π±ΠΎΡ˜ΡƒΠ²Π°ΡšΠ΅. Π—Π΅ΠΌΠ°Ρ˜ΡœΠΈ Π³ΠΈ Π²ΠΎ ΠΏΡ€Π΅Π΄Π²ΠΈΠ΄ ΡƒΠΏΠΎΡ‚Ρ€Π΅Π±Π΅Π½ΠΈΡ‚Π΅ Π½Π°ΠΏΠΈΡ‚ΠΎΡ†ΠΈ Π²ΠΎ ΠΎΠ²Π°Π° ΡΡ‚ΡƒΠ΄ΠΈΡ˜Π° ΠΊΠ°ΠΊΠΎ најголСм ΠΏΡ€Π΅Π±ΠΎΡ˜ΡƒΠ²Π°Ρ‡ кај Ρ‚Ρ€ΠΈΡ‚Π΅ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½ΠΈ ΠΌΠ°Ρ‚Π΅Ρ€ΠΈΡ˜Π°Π»ΠΈ бСшС Π΅Π²ΠΈΠ΄Π΅Π½Ρ‚ΠΈΡ€Π°Π½ Ρ‡Π°Ρ˜ΠΎΡ‚ ΠΎΠ΄ Π°Ρ€ΠΎΠ½ΠΈΡ˜Π°. Π’ΠΎ ΠΏΡ€Π΅Π±ΠΎΡ˜ΡƒΠ²Π°ΡšΠ΅Ρ‚ΠΎ Π½Π° дисковитС Π·Π½Π°Ρ‡Π°Ρ˜Π½Π° ΡƒΠ»ΠΎΠ³Π° имашС ΠΈ Π·Π°Π²Ρ€ΡˆΠ½Π°Ρ‚Π° ΠΎΠ±Ρ€Π°Π±ΠΎΡ‚ΠΊΠ° Π½Π° ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½ΠΈΡ‚Π΅ смоли. ΠšΠ»ΡƒΡ‡Π½ΠΈ Π·Π±ΠΎΡ€ΠΎΠ²ΠΈ: ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ‚Π½ΠΈ смоли, ΠΏΡ€Π΅Π±ΠΎΡ˜ΡƒΠ²Π°ΡšΠ΅, ΠΏΡ€Π΅Π±ΠΎΡ˜ΡƒΠ²Π°Ρ‡ΠΈ, спСктрофотомСта

    Composite resin discoloration caused by every day consumption products

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    Background: Composite resins revolutionized the modern restorative dentistry with its high value aesthetic properties especially in the frontal region, and satisfactory stability in the posterior region of the human dental arch. The aim of this poster presentation is to serve us as a reminder about the possible staining of the composite resins immersed into various drinks, food colorants and dental rinse products. Methods and materials: For this type of research we used a number of scientific articles from the database of PubMed which dated from the year of 2009 until present time. We used only articles that had in vitro researches on plain composite resin based restorative materials which are most used in dental practices around the world. Results: All the articles showed a small to a significant discoloration of the composite resins no matter of the chemical compound of the resin matrix, or the finishing technique. For any discoloration to occur there are many intrinsic and extrinsic causes which vary from resin to resin. Conclusion: Composite resins are prone to discoloration (and wear) which occurs from the substances that are part of our every day consumption products. Discoloration can be slowed down with proper placement of the resins into the cavities, and adequate techniques of finishing and polishing

    Modified Direct Composite Resin Bonded Bridge

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    Introduction. After losing a tooth in the anterior region the patients immediately seek a solution for this newly occurred problem. Should the indications be right, a resin bonded bridge enforced with glass fibre tape can be proposed as an aesthetic treatment option . Case Description. A patient came to our clinic for a treatment after losing a left central lower incisor. After examining the patient, several options like prosthetic and surgical with prosthetic were proposed, but she declined them all. At last a resin bonded bridge was chosen as an option due to the aesthetic that it provides and the minimally invasive technique. A full mouth ultrasonic scaling was conducted prior to the treatment for optimal conditions. The adjacent teeth were etched with a 37 % phosphoric acid for 60 seconds. After the etching the teeth were rinsed off from the acid and kept dry for the entire treatment. On the etched surface a 7-th generation bond was applied and polymerized. A glass fiber tape was adapted and bonded on the surfaces off the adjacent teeth. Tooth like structure was build around the fiber glass tape with a micro-hybrid composite resin. The treatment ended with finishing and polishing the structure as well as instructions for the patient on how to maintain the resin bonded bridge. Discussion. The adhesion that provides the 7-th generation bond and the glass fiber’s strength will play the key roles for the longevity off this structure
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