From the time Buenocore first discovered adhesive dentistry in 1955, there has been continuous development in this field. This innovation has revolutionized restorative dental practice. Today’s direct composite restorations have a number of advantages over other restorative materials. ‘They are aesthetic, timesaving, minimally invasive and biologically compatible. Moreover, they are easy to handle, manipulate, repair and control’ (Dentistry today, 2008). Such mode of treatment not only involves a minimally invasive approach but, with the advent of newer adhesive systems also produces reliable bond strengths to enamel and dentin along with excellent aesthetic outcomes. Moreover, it is believed that a strong adhesion between the tooth and composite interface is necessary to withstand the contraction forces during polymerization of composite resin. Many authors (Pushpa and Suresh 2010; Munck et al. 2005) have stated that an optimum adhesion guarantees long-term retention and …show more content…
The latest of these products include the 5th and 6th generation bonding agents which include either the one bottle systems which combined the primer and adhesive into one bottle and require prior etching with phosphoric acid; or the self etching (SE) primer bonding systems which eliminate the rinsing step of the etchant, thereby reducing the number of steps in its application and creating a simplified, user-friendly and less technique sensitive material. They maintain the smear layer as a substrate for bonding to the tooth surface (Breschi et al. 2008). As washing off the etchant was eliminated by this technique there was no threat of collagen
Composite restoration usage in dentistry is increasing. Because of this interest in the longevity and reliability of composite fillings also is increasing1. One problem that can occur with composite restorations is micro-leakage. This is when microgaps at the tooth-restoration interface allow fluids and bacteria into the restoration2. These gaps are formed when the material is polymerized and shrinks, which causes the material to pull away from the margins of the preporation2. Problems that can arise from micro-leakage are secondary carries, hypersensitivity, pulp stimulation, and marginal discoloration3. This is why dentists are trying to find ways to reduce micro-leakage of composite restorations.
Pit and fissure sealants are tooth coloured materials that are applied on the occlusal surfaces of the posterior teeth in deep grooves, pits and fissures. They protect the tooth from various bacterial plaques in these caries prone areas of the teeth. The sealants protect these areas by sealing of the entrance to bacteria which give rise to dental caries in susceptible individuals especially in children. Pit and fissure sealants are now commonly being used due to the increase in the awareness among public about dental caries prevention
...at more tentatively, with fluoride gels and varnishes or a chlorhexidine varnish. Some dentists may restore root caries with amalgam restorations. Another treatment option used by some dentists to restore root caries is Glass Ionomer Cements. Glass ionomer cements were first introduced in the early 1970s. They have good adherence to mineralized tooth tissue, which keeps the removal of tooth structure to a minimum. Glass ionomer cements also have the ability to leak and absorb fluoride into the tooth, which decreases the rate of secondary caries. These factors have increased the potential for glass ionomer cements to replace amalgam as a restorative material. (Hammel)
Dr. Gary Silva and his team are highly trained and experienced in providing restorations for all sorts of dental issues. We offer complete and partial dentures, tooth-colored fillings, crowns, bridges, and more. Dr. Silva’s unique background gave him real restorative experience early in his career. For more than 20 years, Dr. Silva has been offering patients the chance to gain a beautiful, functional smile with his restorative dentistry.
Abnormal wear of tooth surfaces was an orthodontic problem early on, even ancient people wanted straight teeth! To close gaps, it has been construed that catgut did the work now done by today’s orthodontic wire. In 400-500 BC, Hippocrates and Aristotle both ruminated about ways to level teeth and fix many dental conditions. It should be noted that in Medieval times, expert barbers often performed dental “operations”, extractions, and procedures such as blood-letting. In seventeen twenty-eight, French Dentist Pierre Fauchard published a book called “The Surgeon Dentist” about ways to straighten and align teeth. He used a device called a “Bandeau,” a horse-shaped piece of precious metal which helped...
3) Describe the rationale and demonstrate how to chart existing restorations (amalgam, composite, gold, crowns, bridges, other), missing teeth, incipient caries and caries.
Imagine having to spend half your fortune on correcting your teeth.”Tooth decay was a perennial national problem that meant a mouthful of silver for patients, and for dentists a pocketful of gold.” (Wallis, 17) If patients don’t take care of their teeth, many issues can start to appear later in their life. Some patients are not knowledgeable of the correct procedures toward keeping a healthy smile. In order to keep a healthy smile patients must be better informed about the knowledge to achieve that success and also maintain.
...an be seen that composite teeth form a high stability bond than PMMA teeth. This is due to the filler content allowing for low shrinkage, increased wear resistance and better cross-linkage with the base. In overall consensus the technique of heat-curing is believed to achieve significantly more polymer cross-linkage than that of self-curing the acrylic resin PMMA base - giving us a stronger base to teeth interface. It should be noted however that both techniques can be used for denture fabrication to achieve a desired result and it is up to the dentist and the technician to determine which one they prefer however, composite teeth bonded to a heat-cured PMMA base works best. Though the tooth and base by themselves may be strong, if the interface between them is not strong, this will result in the overall denture produced being weak independent of material selection.
In recent years the discussion of whether dental amalgam is safe for use in filling caries has been a hot topic. In this project I will give an explanation of what dental amalgam is, mentioning and highlighting its beginnings in dentistry and how it became the most used restorative material to date. I will also be mentioning the reason there is so much controversy surrounding its use, and the basis for these questions. This will include information gathered from research collected by various scientists. Also mentioned will be the different restorative materials that came by due to the dental amalgam controversy.
Picture yourself with a toothache or someone with poor hygiene and knowing you cannot do anything to change it without a dentist. A dentist is specialized individual that treats the diseases and conditions that affect the oral cavity.
The existence of micro-leakage in dental restorations was first identified in scientific research in 19126. In a study done by Harper (1912), air pressure was used to penetrate the surface between an amalgam restoration and cavity preparation7. By applying pressure through a hole in the pulpal floor, Harper could quantify the amount of pressure needed to establish leakage through the emergence of bubbles from the margins of the restoration. Research has come a long way since Harper first recognized micro-leakage. Adaptations of new materials used when placing composite restorations like BondAband, a light-cured glass-ionomer cement has been shown to reduce marginal micro-leakage in posterior restorations8. A decrease in microleakage has also been shown with the use of an ...
Dental plaque is broadly classified as supragingival or subgingival based on its position on the tooth surface toward the gingival margin. Supragingival plaque is found at or above the gingival margin. Therefore, it can be further differentiated into coronal plaque, whi...
...because the residual oxygen from the whitening gels created an oxygen-inhibited layer. It is recommended that clinicians delay the placement of bonded restorations until 1-3 weeks after treatment (Can-Karabulut et al 2011).
In the past, diseased or damaged teeth could not be salvaged and in most cases, had to be pulled out. However, in the last three decades, endodontic dentistry has evolved to quite an extent and today, professionals trained in this specialty can help save teeth and repair any inherent damage. Common endodontic procedures include root canal therapy, fixing of broken teeth and repairing dental trauma.
Our analysis revealed that Affinis® had more dimensional stability in comparison to Panasil® and in the Panasil® impression material, the percentage of dimensional change was significant after 168 h. However, dimensional changes in all of the evaluation times were in the American Dental Association (ADA) standard range. Therefore, these materials had acceptable clinical dimensional stability for approximately 168 h. In the current study, impressions were made from stainless steel dies following the ADA specification for impression materials. This provides a protocol that can be easily replicated by others and it is the same as making a clinical