6 research outputs found
Π‘ΡΠ°Π²Π½ΠΈΡΠ΅Π»ΡΠ½ΡΠΉ Π°Π½Π°Π»ΠΈΠ· ΠΌΠΈΠΊΡΠΎΡΠ²ΡΡΠ΄ΠΎΡΡΠΈ ΡΠΌΠ°Π»ΠΈ ΠΈ Π΄Π΅Π½ΡΠΈΠ½Π° Π·Π΄ΠΎΡΠΎΠ²ΡΡ Π·ΡΠ±ΠΎΠ² ΠΈ ΠΏΡΠΈ ΡΠ»ΡΠΎΡΠΎΠ·Π΅
The aim of this study was to compare the enamel and dentin microhardness of teeth with TF (Thylstup-Fejerskov) scores of 0,1,2,3 and 4, using microindentation method. In this study we used Hanemann VEB Zeiss Jena device. The results demonstrated a decrease of the microhardness of the teeth having dental fluorosis when compare with healthy teeth, but the association was statistically significant only in the internal third of the enamel of the teeth having TF scores of 2,3 and 4 and at the enamel-dentin junction of the teeth with TF 4.Π ΡΡΠΎΠΉ ΡΠ°Π±ΠΎΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΡΡΡΡΡ ΠΌΠΈΠΊΡΠΎΡΠ²ΡΡΠ΄ΠΎΡΡΡ ΡΠΌΠ°Π»ΠΈ ΠΈ Π΄Π΅Π½ΡΠΈΠ½Π° Π·ΡΠ±ΠΎΠ² Ρ ΡΠ»ΡΠΎΡΠΎΠ·ΠΎΠΌ 1,2,3 ΠΈ 4 ΡΡΠ΅ΠΏΠ΅Π½ΠΈ (ΠΏΠΎ ΠΊΠ»Π°ΡΡΠΈΡΠΈΠΊΠ°ΡΠΈΠΈ Thylstrup-Fejerskov), Π² ΡΡΠ°Π²Π½Π΅Π½ΠΈΠΈ Ρ Π·Π΄ΠΎΡΠΎΠ²ΡΠΌΠΈ ΡΠΊΠ°Π½ΡΠΌΠΈ Π·ΡΠ±ΠΎΠ². ΠΠΈΠΊΡΠΎΡΠ²ΡΡΠ΄ΠΎΡΡΡ Π·ΡΠ±ΠΎΠ² ΠΈΡΡΠ»Π΅Π΄ΡΠ΅ΡΡΡ ΠΏΠΎ ΠΌΠ΅ΡΠΎΠ΄Ρ ΠΌΠΈΠΊΡΠΎΠΈΠ½Π΄Π΅Π½ΡΠ°ΡΠΈΠΈ ΠΏΡΠΈ ΠΏΠΎΠΌΠΎΡΠΈ Π°ΠΏΠ°ΡΠ°ΡΠ° Hanneman VEB Zeiss Jena. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ Π΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΡΡΡ ΡΡΠΎ ΡΠ²ΡΡΠ΄ΠΎΡΡΡ ΡΠΌΠ°Π»ΠΈ ΠΈ Π΄Π΅Π½ΡΠΈΠ½Π° Π·ΡΠ±ΠΎΠ² Ρ ΡΠ»ΡΠΎΡΠΎΠ·ΠΎΠΌ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠ½ΠΈΠΆΠ°Π΅ΡΡΡ Π² ΡΠ°Π·Π»ΠΈΡΠΈΠΈ ΠΎΡ ΡΠ΅Ρ
ΠΆΠ΅ ΡΡΡΡΠΊΡΡΡ ΠΏΡΠΈ Π·Π΄ΠΎΡΠΎΠ²ΡΡ
Π·ΡΠ±Π°Ρ
, ΠΎΡΡΠΎΠ±Π΅Π½Π½ΠΎ, ΠΎΡΠΌΠ΅ΡΠ°ΡΡΡΡ ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈΠ·ΠΌeΠ½Π΅Π½ΠΈΡ Π² Π²Π½ΡΡΡΠ΅Π½Π½Π΅ΠΉ 1/3 ΡΠΌΠ°Π»ΠΈ ΠΈ Π½Π° ΡΡΠΎΠ²Π½Π΅ Π΄Π΅Π½ΡΠΈΠ½ΠΎ-ΡΠΌΠ°Π»Π΅Π²ΠΎΠΉ Π³ΡΠ°Π½ΠΈΡΠ΅
ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΠ΅ Π²Π»ΠΈΡΠ½ΠΈΡ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ² ΠΏΡΠ΅ΠΏΠ°ΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΊΠ°ΡΠΈΠΎΠ·Π½ΡΡ ΠΏΠΎΠ»ΠΎΡΡΠ΅ΠΉ Π½Π° ΠΌΠ°ΡΠ³ΠΈΠ½Π°Π»ΡΠ½ΠΎΠ΅ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠ΅ ΠΏΡΠΈ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ½ΡΡ ΡΠ΅ΡΡΠ°Π²ΡΠ°ΡΠΈΡΡ
Due to their morphological and clinical-biological particularities, the occlusal surfaces benefit from a special therapeutic management. Modern preparation of the cavity surfaces may be carried out with air abrasion devices or aerated salt powder polishing devices (Prophyjet). The adhesion of composite resins is obtained nowadays with 7th generation monocomponent selfetching agents whose marginal sealing nevertheless proved to be inferior to the one obtained by the application of the adhesive system in 3 separate times. The purpose of our study was to assess marginal sealing of occlusal restorations through a colorimetric method in different clinical situations in which we used the afore-mentioned devices and to which either selfetching adhesive system was applied alone or together with an additional acid conditioning. The outcomes statistically analyzed demonstrated that marginal sealing improved significantly by the use of one of the 2 devices and the additional acid conditioning of the enamel margins.ΠΠ΅ΡΠ΅Π½ΠΈΠ΅ ΠΊΠ°ΡΠΈΠ΅ΡΠ° ΠΆΠ΅Π²Π°ΡΠ΅Π»ΡΠ½ΡΡ
ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ΅ΠΉ ΡΡΠ΅Π±ΡΠ΅Ρ ΡΠΏΠ΅ΡΠΈΠ°Π»ΡΠ½ΡΠΉ ΡΠ΅ΡΠ°ΠΏΠ΅Π²ΡΠΈΡΠ΅ΡΠΊΠΈΠΉ ΠΏΠΎΠ΄Ρ
ΠΎΠ΄ ΠΈΠ·-Π·Π° Ρ
Π°ΡΠ°ΠΊΡΠ΅ΡΠ½ΡΡ
ΠΌΠΎΡΡΠΎΠ»ΠΎΠ³ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΈ ΠΊΠ»ΠΈΠ½ΠΈΠΊΠΎ-ΡΠ΅ΡΠ°ΠΏΠ΅Π²ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠ΅ΠΉ ΡΡΠΈΡ
Π·ΠΎΠ½. ΠΠΎ Π°ΠΊΡΡΠ°Π»ΡΠ½ΡΠΌ ΠΌΠ΅ΡΠΎΠ΄Π°ΠΌ Π΄Π»Ρ ΡΠ°Π΄ΡΡΠ΅Π³ΠΎ ΠΏΡΠ΅ΠΏΠ°ΡΠΈΡΠΎΠ²Π°Π½ΠΈΡ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠ΅ΠΉ ΠΌΠΎΠΆΠ΅ΠΌ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°ΡΡ Π²ΠΎΠ·Π΄ΡΡ
ΠΎ-Π²ΠΎΠ΄Π½ΠΎ-Π°Π±ΡΠ°Π·ΠΈΠ²Π½ΡΠΉ ΠΌΠ΅ΡΠΎΠ΄ (Fluid-air-abrazion) ΠΈΠ»ΠΈ Prophyjet. ΠΡΠΈ ΡΠ΅ΡΡΠ°Π²ΡΠ°ΡΠΈΠΈ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ°ΠΌΠΈ ΠΈΡΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΡΡΡ Π°Π΄Π³Π΅Π·ΠΈΠ²Π½Π°Ρ ΠΌΠΎΠ½ΠΎΡΠΈΡ- ΡΠ΅ΠΌΠ° VII Π³Π΅Π½Π΅ΡΠ°ΡΠΈΠΈ, ΠΊΠΎΡΠΎΡΠ°Ρ ΠΎΠΊΠ°Π·ΡΠ²Π°Π΅ΡΡΡ ΠΈΠΌΠ΅Π΅Ρ Π½Π΅ΠΊΠΎΡΠΎΡΡΠ΅ Π½Π΅Π΄ΠΎΡΡΠ°ΡΠΊΠΈ Π² ΡΡΠ°Π²Π½Π΅Π½ΠΈΠΈ Ρ ΡΡΡΡ
ΡΡΠ°ΠΏΠ½ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΠΎΠΉ. Π¦Π΅Π»Ρ Π½Π°ΡΠ΅ΠΉ ΡΠ°Π±ΠΎΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°ΡΡ ΠΌΠ°ΡΠ³ΠΈΠ½Π°Π»ΡΠ½ΠΎΠ΅ Π°Π΄Π³Π΅Π·ΠΈΠ²Π½ΠΎΠ΅ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠ΅ ΠΏΡΠΈ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ½ΡΡ
ΡΠ΅ΡΡΠ°Π²ΡΠ°ΡΠΈΡΡ
ΠΊΠΎΠ»ΠΎΡΠΈΠΌΠ΅ΡΡΠΈΡΠ΅ΡΠΊΠΈΠΌ ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ Π² ΡΠ°Π·Π½ΡΡ
ΠΊΠ»ΠΈΠ½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠΈΡΡΠ°ΡΠΈΡΡ
, ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΡ Π°Π΄Π³Π΅Π·ΠΈΠ²Π½ΡΡ ΠΌΠΎΠ½ΠΎΡΠΈΡΡΠ΅ΠΌΡ VII Π³Π΅Π½Π΅ΡΠ°ΡΠΈΠΈ ΠΈΠ»ΠΈ ΡΡ ΠΆΠ΅ ΡΠΈΡΡΠ΅ΠΌΡ ΠΏΠ»ΡΡ Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΠΎΠ΅ ΠΊΠΈΡΠ»ΠΎΡΠ½ΠΎΠ΅ ΠΏΡΠΎΡΡΠ°Π²Π»ΠΈΠ²Π°Π½ΠΈΠ΅.ΠΡΠΈ ΡΡΠ°ΡΠΈΡΡΠΈΡΠ΅ΡΠΊΠΎΠΌ Π°Π½Π°Π»ΠΈΠ·Π΅ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ Π΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΡΡΡ ΡΡΠΎ ΠΌΠ°ΡΠ³ΠΈΠ½Π°Π»ΡΠ½ΠΎΠ΅ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΠ΅ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΠΎ ΡΠ»ΡΡΡΠ°Π΅ΡΡΡ ΠΊΠΎΠ³Π΄Π° ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΡΡΡ ΠΎΠ΄ΠΈΠ½ ΠΈΠ· Π΄Π²ΡΡ
ΠΌΠ΅ΡΠΎΠ΄ΠΎΠ² ΠΏΡΠΈΠΌΠ΅Π½ΡΠ΅ΠΌΡΡ
Π½Π°ΠΌΠΈ ΡΠΎΠ²ΠΌΠ΅ΡΡΠ½ΠΎ Ρ Π΄ΠΎΠΏΠΎΠ»Π½ΠΈΡΠ΅Π»ΡΠ½ΡΠΌ ΠΏΡΠΎΡΡΠ°Π²Π»ΠΈΠ²Π°Π½ΠΈΠ΅ΠΌ ΡΠΌΠ°Π»ΠΈ
ΠΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΡΡΡΡ Π°Π΄Π³Π΅Π·ΠΈΠ²Π½ΡΡ ΡΠΈΡΡΠ΅ΠΌ ΠΈΡΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΠΌΡΡ Π΄Π»Ρ ΠΈΠΌΠΎΠ±ΠΈΠ»ΠΈΠ·Π°ΡΠΈΠΈ Π·ΡΠ±ΠΎΠ² ΠΏΡΠΈ ΠΏΠ°ΡΠΎΠ΄ΠΎΠ½ΡΠ°Π»ΡΠ½ΡΡ Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΡΡ
This study assessed, through scanning electron microscopy (SEM), the behaviour of adhesive systems used for bonding fiberglass-reinforced splint system to enamel surfaces ofperiodontally compromised anterior teeth. Scanning electron microscopy (SEM) observations of the fracture behaviour, shear bond strength and interfacial morphology were performed initially, after 7 days and after 6 months. SEM illustrations revealed various degrees of intermingling between the adhesive material and dental enamel. The best results were performed by Admira Bond system, followed by Scotchbond system. The lowest shear bond strength were assessed for Te Econom system, with high leakage values between dental surface and adhesive resin. Fiber-reinforced splint systems bonded with adhesive and composite resins can be used with good results instead of classical splint systems, especially in frontal areas.Π ΡΡΠΎΠΉ ΡΠ°Π±ΠΎΡΠ΅ ΠΈΡΡΠ»Π΅Π΄ΡΡΡΡΡ Ρ ΠΏΠΎΠΌΠΎΡΡΡ ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠΉ ΠΌΠΈΠΊΡΠΎΡΠΊΠΎΠΏΠΈΠΈ ΡΡΠΈ Π°Π΄Π³Π΅Π·ΠΈΠ²Π½ΡΠ΅ ΡΠΈΡΡΠ΅ΠΌΡ Π΄Π»Ρ ΡΠΈΠΊΡΠ°ΡΠΈΠΈ Π²ΡΠ΅ΠΌΠ΅Π½Π½ΡΡ
ΡΠΈΠ½ ΠΈΠ· ΡΡΠ΅ΠΊΠ»ΠΎ-Π²ΠΎΠ»ΠΎΠΊΠ½Π° (fiberglass-reinforced splint system), ΠΈΡΡΠΏΠΎΠ»ΡΠ·ΡΠ΅ΠΌΡΡ
Π΄Π»Ρ ΠΈΠΌΠΎΠ±ΠΈΠ»ΠΈΠ·Π°- ΡΠΈΠΈ ΠΏΠ΅ΡΠ΅Π΄Π½ΠΈΡ
Π·ΡΠ±ΠΎΠ² Π² ΠΏΠ°ΡΠΎΠ΄ΠΎΠ½ΡΠ°Π»ΡΠ½ΡΡ
Π·Π°Π±ΠΎΠ»Π΅Π²Π°Π½ΠΈΡΡ
. ΠΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎ-ΠΌΠΈΠΊΡΠΎΡΠΊΠΎΠΏΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈΠ·ΠΎΠ±ΡΠ°ΠΆΠ΅Π½ΠΈΡ ΠΏΠΎΠΊΠ°Π·ΡΠ²Π°ΡΡ Π·Π½Π°ΡΠΈΡΠ΅Π»ΡΠ½ΡΠ΅ ΡΠ°Π·Π»ΠΈΡΠΈΡ Π² ΠΊΠ°ΡΠ΅ΡΡΠ²Π΅ Π°Π΄Π³Π΅Π·ΠΈΠΈ Π² Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΠΎΡ ΡΠΈΠΏΠ° Π°Π΄Π³Π΅Π·ΠΈΠΎΠ½Π½ΠΎΠΉ ΡΠΈΡΡΠ΅ΠΌΡ ΠΈ ΠΎΡ ΠΏΡΠΎΡΠ΅Π΄ΡΠ΅Π³ΠΎ Π²ΡΠ΅ΠΌΠ΅Π½ΠΈ. Π‘Π°ΠΌΡΠ΅ Π»ΡΠ΄ΡΠΈΠ΅ ΡΠ΅Π·ΡΠ»ΡΡΠ°ΡΡ ΠΏΠΎΠΊΠ°Π·Π°Π»ΠΈ ΡΠΈΡΡΠ΅ΠΌΠ° Admira Bond ΠΈ Scotchbond, Π° ΡΠ°ΠΌΡΠΉ ΡΠ»Π°Π±ΡΠΉ Te Econom. Π Π΅Π·ΡΠ»ΡΡΠ°ΡΡ ΡΠ°Π±ΠΎΡΡ Π΄Π΅ΠΌΠΎΠ½ΡΡΡΠΈΡΡΡΡ, ΡΡΠΎ ΡΡΠΎΡ ΠΌΠ΅ΡΠΎΠ΄ ΠΈΠΌΠΎΠ±ΠΈΠ»ΠΈΠ·Π°ΡΠΈΠΈ ΠΊΠΎΡΠΎΡΡΠΉ ΠΈΡΠΏΠΎΠ»ΡΠ·ΡΠ΅Ρ Π΄Π»Ρ ΡΠΈΠΊΡΠ°ΡΠΈΠΈ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ ΠΈ Π°Π΄Π³Π΅Π·ΠΈΠ²Π½ΡΠ΅ ΡΠΈΡΡΠ΅ΠΌΡ ΠΌΠΎΠΆΠ½ΠΎ ΠΈΡΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°ΡΡ Ρ ΡΡΠΏΠ΅Ρ
ΠΎΠΌ Π² ΠΏΠ°ΡΠΎΠ΄ΠΎΠ½ΡΠΎΠ»ΠΎΠ³ΠΈΠΈ Π΄Π»Ρ ΠΈΠΌΠΎΠ±ΠΈΠ»ΠΈΠ·Π°ΡΠΈΠΈ Π½Π΅Π±ΠΎΠ»ΡΡΠΈΡ
ΡΠ°Π·ΠΌΠ΅ΡΠΎΠ² ΠΈ ΠΏΡΠΈ Π²ΡΡΠΎΠΊΠΈΡ
ΡΡΡΠ΅ΡΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΡΠ΅Π±ΠΎΠ²Π°Π½ΠΈΡΡ