The Effect of New Generation Self-etch Adhesives on the Quality of Composite Restorations

Samojetkajući dentin adhezivi uvedeni su u praksu kako bi se uklonilo nanocurenje, izbjegla uporaba vlaže tehnike, reducirao broj koraka u aplikaciji adheziva. Na tržištu trenutačno postoje samojetkajući adhezivi koji se apliciraju u jednom ili dva koraka. Cilj je ove studije da usporedi utjecaj 2 samojetkajuća adheziva nove generacije: Prompt L Pop (samojetkajući primer-bond agent, sve u jednom koraku) i AdheSE (samojetkajući primer-bonding agentdva koraka) na kakvoću kompozitnih ispuna treće klase. kompozitni aterijal upotrijebljen u ovoj studiji bio je Tetric Ceram Ivoclar Vivadent. Uzorak u ovoj studiji čini 60 kompozitnih ispuna treće klase, rađenih na djeci u dobi od 12-16 g. Kod 30 ispuna uporabljen je adheziv Prompt L Pop proizvođača #M ESPE, a kod drugih 30 ispuna kao adheziv uporabljen je AdheSE proizvođača Ivoclar Vivadent. Za procijenu kompozitnih restauracija primijenjeni su USPHS kriteriji (A-idealno, B-prihvatljivo, Cneprihvatljivo) za sljedeće parametre: postoperativna osjetljivost, boja ispuna, marginalna diskoloracija, marginalna adaptacija, anatomaski oblik ispuna i postojanje karijesa. Vrjednovanje je provedeno nakon tri i šest mjeseci. Rezultati nisu pokazali statistički znatnu razliku u kakvoći ispuna, bez obzira na vrstu upotrijebljenog adheziva.Self-etch adhesives are introduced in clinical practice with the aim of eliminating nanoleakage, avoiding of wetbond technique and reducing the numerous bonding steps. There are two kinds of self-etch adhesives available on the market today: those that are applied in one and in two steps. The aim of this study was to compare the effect of two self-etch adhesives: Prompt L Pop (Self-etch Primer/Bonding agent-one step) and AdheSE (Self-etch Primer-Bonding agent-two steps) an the quality of Class III composite fillings. Composite filling material used in this study was Tetric Ceram Ivoclar Vivadent. The sample in this study comprises 60 Class III composite fillings, placed in children aged 12-16 years. Out of these, in 30 cases Prompt L Pop 3M ESPE was applied, and in the other 30 fillings, AdheSE Ivoclar Vivadent was used. For the evaluation of composite fillings USPHS criteria were used (A ideal; B-acceptable; C-unacceptable) for following paramaters: postoperative sensitivity, color match, marginal discoloration, marginal adaptation, anatomic form and recurrent caries. The evaluations were performed after 3 and 6 months. Results showed no statistical difference in clinical appearance of fillings irrespective of which adhesive was used

Confocal Laser Scanning Microscopy Investigation of the Penetration of Adhesives and Sealant Resins Into Fissures

Proces zalijevanja fisura u idealnim bi uvijetima trebao potpuno spriječiti prodor mokroarganizama u duboke jamice i fisure. Utvrđeno je da zaljevači sada dostupni na tržištu ne prodiru uvijek i potpuno u duboke i srednje duboke fisure tipa I (oblika pukotine) ili IK tipa (oblika ampula). S obzirom na nisku viskoznost i izvrsno vlaženje postojećih dentin adheziva, oni se upotrebljavaju u kombinaciji sa zaljevačima fisura da bi se poboljšala kvaliteta veze između zaljevača i cakline. Svrha ove ekspeimentalne studije bila je ispitati postoji li mogućnost poboljšanja penetracije zaljevača u fisure humanih molara, u kombinaciji s dentin adhezivima. Istraživanje je provedeno na 20 izvađenih intaktnih ljudskih molara i premolara. Čiščenje je učinjeno zračnim polirajućim uređajem 60 sekundi. Eksperimentalna grupa od 10 uzoraka tretirana je s dentin adhezivom Prime&Bond NT i zaljevačem fisura Dyrect Seal. Kontrolna skupina (10 zuba također) tretirana je samo sa zaljevačem fisura Dyrect seal. Tretirani uzorci rezani su na režnjeve debljine 700 mikrometara (ukupno 53 komada), usporedno sa zubnom osovinom. Vrjednovanje je provedeno s konfokalnim laserskim mikroskopom. Rezultati eksperimentalne skupine pokazuju da je 12 dubokih fisura potpuno punjeno, 9 nije bilo punjeno potpuno, 9 je bilo punjeno s postojanjem mjehurića zraka, a jedna široka fisura bila je punjena potpuno. Rezultati kontrolne skupine pokazuju da je 6 dubokih fisura potpuno punjeno, 19 nije punjeno, 5 je punjeno s postojanjem mjehurića zraka i 6 širokih fisura je punjeno potpuno. Uporabljen je Hi-kvadrat test za statističku raščlambu sa stupnjem korekcije p = 0,0465. To znači da postoji znatna razlika između kontrolne i eksperimentalne skupine. Uporaba dentin adheziva u metodi zalijevanja fisura ima određene prednosti u usporedbi s standardnom metodom zalijevanja fisura.The process of fissure sealing should ideally avoid the delivery of any microorganism subtrate into the depths of plaque-retentive pits and fissures. Up to now, available sealing materials have been found to not always completely penetrate to the bottom of deep and medium deep fissures of type I (slit-like) or type IK (ampoule-like). Due to the low viscosity and exellent wetting properties of current dentin adhesive systems, they were used in combination with sealant materials in order to improve the filling of fissures. The purpose of this experimental study was to evaluate whether penetration by filled sealing materialsinto fissures of human molars could be improved by combining them with enamel-dentin adhesives. The investigation was carried out on 20 extracted clinically caries-free, human premolars and molars. Cleaning was carried out with an air polishing device for 60 seconds. In the test groups, each containing ten teeth, a two material combination of an enamel-dentin adhesive (Prime&Bond NT) and a filled sealing resin was used to seal the fissures (Dyrect SEal). In the control groups (ten teeth) only the filled sealing material without an initial adhesive was applied. The scaled teeth were sectioned into slices of 700 micrometers in thickness (totla of 53 slices), parallel to the tooth axis. Evaluation under CLSM was carred out. In the experimental group, 12 deep fissures were completely filled, 9 were not filled, 9 were filled with bubbles of air, 1 wide fissure was filled. In the control group, 6 deep fissures were filled, 19 were not filled, 5 were filled with the bubbles of air and 6 wide fisures were filled. We used Chi-sqouare test as a statistic method and later Yatcs correction p = 0.0465. Differences between the control and experimental group are significant. Use of enamel-dentin-adhesive system in fissure sealing have some advantages

Factors that Determine Child Behavior during Dental Treatment

In this review paper we wanted to summarize all the aspects which could affect the behavior of the child patients in the dental office. At the beginning, the factors that are related to the child patients are mentioned. Various segments of child psychological, cognitive, physiological and other kinds of development are discussed. Also, the reasons for dental fear and anxiety (DFA) and dental behavior problems (DBP) were analyzed, and how the child dental patients could cope with them. Finally, types of patients according to their behavior in the dental office were discussed. Furthermore, the influences of child patients’ parents were studied, including parenting styles, as well as factors related to dentist, dental team and the dental office. Finally, critical evaluation of administration of assets to measure the presence of DFA and DBP is provided. Every part of the text was corroborated by the results from our own and other authors’ recent bibliography data