Composite restoration ppt


The use of composite resins for class IV restorations is a procedure that demands the clinician to commit, from planning to execution, combining art and science using a minimal invasive approach that allows more tissue preservation with optimal aesthetic and functional outcome. The polychromatic complexity and color selection of the restoration is one of the most challenging stages, the optical features of the dentin, enamel and their simultaneous coexistence are the ones that determine the final color of the tooth.

Stratification techniques have as an objective to reach the color from the inside to the outside through the combination of dentin and enamel composites, chromatic and achromatic, effects, using small increments in each layer of the restoration. Dental color has as well a direct relation with the surface texture, a tooth with a whiter appearance is strongly linked with a richer surface detail which makes light reflect more and in different direction, compared with a tooth that has a smoother surface, which will make it of a darker appearance.

Fundamentals of Tooth Preparation [PPT]

A simple way of selecting color for a restoration is the following: observe the cervical third to obtain the color of the dentin, the middle third to obtain the color of the chromatic enamel and observation of the distal, mesial and incisal margins for choosing the achromatic enamel. Upper central incisors are the most prone to coronary fractures and constitute one of the most frequent dento-alveolar trauma in the permanent dentition.

The type IV lesions can be seen by loosing the incisal edge, the middle third, involving or not the incisal angles, after the pulp and periodontal evaluation, we should decide the restorative therapy to follow. In the following pictures a Class IV fractures case on 11 and 21 restored with composite resins will be presented with a simple protocol at the reach of everyone.

This index will be used for the mock-up. When restoring fractured teeth we usually start from the palatal wall when we have a silicone stent, we use a high transparency composite as the achromatic dentins Trans 20 Empress Direct, Ivoclar Vivadent or effect enamels in very thin layers; we apply the resin over the stent in a homogeneous way and place it in the cavity, adjust it and polymerize it, many times we reinforce this wall with a small amount of flowable resin before removing the index.

With the help of an explorer or a sharp instrument we start shaping the mamelons, maintaining a small space for the incisal effects with the transparent masses. Afterwards abrasive rubber tips. The main goal of performing direct restorations with composite resins is to handle an easy workflow that allows the clinician to have a predictable, natural, functional and long lasting result.

Composite resin is a tooth-friendly material, and it allows a minimally invasive approach; color selection is always a challenge for the clinician, in the present article, a simple method is proposed and on top of that, a digital method to enhance the present characterizations of the natural teeth. Combining science and art and the thorough observation of the natural details must concern the clinician from the beginning to the very end. Said that, a constant quest for natural aesthetics together with a continuous evolution of the adhesive systems and dental materials allow the professional to achieve aesthetic results for long term restorations.

Capitulo 3: Restauracaos esteticas e transformacoes anteriores. Quintessence Editora Ltda. Dental Press editora. Layers — An atlas of composite resin stratification. Capitulo 1: Color. Capitulo 4: Mid. The invisible Class IV restoration. J Esthet Dent. Placement of direct composite veneers utilizing a silicone buildup guide and intraoral mock-up.

Pract Periodont Aesthet Dent. Visdent ;11 3 Fahl N Jr. Trans-Surgical restoration of extensive Class IV defectsin the anterior dentition. Pract Periodontics Aesthet Dent. Hirata R.

Coronal Reconstruction of a severely compromised central incisor with composite resins: A case report. Journal of Cosmetic Dentistry.It is a combination of conventional dental composite white fillings and glass fibres to give the same level of strength and flexibility that you get in boats, light aircraft and F1 racing cars. The fibres are typically long thin strands of glass fibre that are aligned as meshes or strips depending on their requirement. They can be adapted by hand to connect teeth together, reinforce cracked or undermined teeth or support crowns and bridges.

The combination of direct white fillings and reinforcing glass fibres is a truly potent one as it allows an amazing blend of strength and aesthetics with the least possible amount of drilling to sound tooth tissue. Because we can place large fillings directly in the mouth we can often reduce the need for more costly crowns and overlays. This can save our patients both time and money, whilst saving the tooth as well. Are Fibre Reinforced Composites really stronger than normal fillings?

Yes they are. Studies have shown that FRCs can resist enormous load and a clinical audit of FRCs placed at StoneRock has shown them to be an invaluable technique for restoring otherwise very compromised teeth that are too far gone for conventional techniques. Are FRCs as strong as cast metal overlays and crowns? An FRC used as a direct filling in a molar tooth, for example, is not as strong as a cast gold overlay. It is however cheaper, quicker and involves less drilling to natural sound tooth tissue.

This makes it an attractive option, especially on teeth that are compromised in other ways and so do not warrant the extra expense required for the stronger option. How long will FRC last? This is a difficult question to answer as it will depend on how big the filling is, how much enamel there is available to bond to, how much chewing force the tooth is under and how well looked after the tooth is.

Studies carried out in Finland where FRCs are used routinely show that 10 year survival rates are good although it is expected that they will not routinely last much longer than this as the fibres will succumb to fatigue and stress fractures. So long as no damage has occurred to the under lying tooth, however, the technique can be repeated with little or no impact on the tooth.

Can FRCs be repaired if they break? Yes, this is perhaps one of their greatest assets. All restorations made from FRC can be easily repaired in the mouth, usually with no loss of strength to the final result. This is a huge advantage over porcelain that is used commonly as a restoration at the back of the mouth where it is not best suited.

Porcelain is very inflexible and will fracture if it flexes more than 0. FRCs however have the same flexibility as enamel and dentine so can move and flex with the tooth protecting it from damaging stresses. If the FRC does break then it can repaired directly in the mouth, where as the porcelain has to be removed and remade at much greater expense and inconvenience. Do all dentists use these techniques?

Sadly the answer to this is no. Fibredontolgy is a rapidly expanding area in dentistry but as it is a relatively new development not all dentists are familiar with the techniques and skills required. For more information or to book an appointment at our dentist practice in Kent please contact our Reception Team on or info stonerock. We provide every level of care, from routine family dental visits to complete cosmetic dental makeovers, including dental implants, teeth whitening, veneers, bridges and other cosmetic dental and facial aesthetic techniques.

We know how hard it can be to choose a dentist and we know how tough it can be to decide what treatment is right for you, therefore we put your comfort and your well being at the heart of every treatment that we provide.

You can contact us on or info stonerock. Fibre reinforced composite is a super strength direct white filling material that be can used to restore teeth in an incredible number of ways.

Follow us on Twitter StoneRock remains open.Direct adhesive techniques using materials based on composite resins are an excellent modality for the minimally invasive esthetic restoration of anterior teeth. Esthetic direct adhesive composite restorations allow the replacement of hard dental structures in the following cases:. The treatment of tooth discoloration related to its etiology using direct laminate veneers represents a specific issue. Moreover, the reshaping of the coronal morphology shape, size, 3D-positioning of intact teeth, unaffected by the aforementioned lesions, can be achieved under correct functional conditions.

The achievement of the expected esthetic results is undoubtedly related to the right choice and correct use of the restorative dental materials, according to the indications and techniques specific to each clinical situation. The technique must allow the acquisition of the shape and size, as well as the selection, establishment, and reproduction of the natural chromatic appearance of the restored tooth.

Enamel and dentin adhesive systems are components with a decisive role in the final result of these restorations. Regarding the therapeutic approach of the substrate, their current development and variability offer high bonding forces, increased fracture nepali sexy bhalu contact number wear strength, and optimal marginal sealing, which will accord an increased longevity to the restorations.

The first composite resins available for current use in practice were macrofill composite resins. They have a high degree of loading with irregularly shaped macroparticles, with a nonhomogeneous distribution and uneven sizes.

Although they are mechanically strong, they have reduced esthetic qualities because of their optical properties and the surface texture obtained after finishing and polishing. For this reason they are not a convenient solution for this purpose. From an esthetic point of view, in order to reproduce the physical optical properties of enamel and the biological qualities of its surface, microfill composite resins are the highest performance composite materials that can be used for the direct restoration of anterior teeth.

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Regarding their optical properties, microfill composite materials have reflection and refraction properties that are extremely similar to those of the dental enamel surface. This is why, after processing, finishing, and polishing, they reproduce this surface best in terms of smooth texture and lack of roughness, light reflection and refraction, color density, and translucency, conferring the natural vitality of the esthetic appearance, which can be observed immediately and in the short term, as well as maintained in the long term.

The main problem related to the properties of microfill composite resins is the low resistance to fracture and high or excessive wear particularly by attritionwhich limits their use in locations where they are exposed to increased strain due to high occlusal forces.

The first composite materials used to solve this problem due to their good resistance to mechanical strainand to replace microfill composite resins in the aforementioned situations, were microhybrid composite materials. Their physical properties include high resistance to compression and fracture, but their esthetic qualities do not equal those of micro- or nanofill composite materials.

The mean size of small-size particles in microhybrid composite materials is 0. However, they do not allow finishing and polishing of the surface in order to obtain a texture and a gloss similar to natural enamel, both immediately and in the short term, and particularly in the long term. Due to their increased strength and opacity, these materials are extremely useful for stratified restorative techniques in sop for hot air oven teeth, in order to reproduce the qualities of dentin as a support for enamel or, frequently, for masking darker or discolored areas.

Nanofill composite resins based on nanotechnology are the most recently introduced materials used in daily practice for direct esthetic restorations. They are currently considered to be universal restoration materials for common situations — where esthetic requirements are not exceptional — while they can offer the following simultaneous advantages:. Apart from the above, they can also be used as a support for microfill composite resins, in which case the quality of translucency allows for the reproduction of the vital tooth appearance.

However, compared to microfill composite resins, their final surface characteristics are not either quasi-identical or extremely similar to those of the dental enamel surface; nor do they perfectly mimic the natural vitality of the esthetic appearance.

To summarize the adequate and appropriate selection of materials for direct esthetic restorations in anterior teeth: microhybrid composite resins are optimal to reproduce the properties of dentin resistance, color, opacityand to replace it.

Nanofill composite resins based on nanotechnology and nanohybrid composite resins are the most frequently indicated as universal materials for most ordinary situations with above-average esthetic requirements. Microfill composite resins can reproduce enamel characteristics surface texture and gloss, translucency, light reflection and refraction extremely well, and are therefore esthetically optimal for its replacement in restorations with exceptional requirements.Toggle navigation.

Help Preferences Sign up Log in. View by Category Toggle navigation. Products Sold on our sister site CrystalGraphics. Title: Restorative Composite Resins. Tags: composite navy resins restorative. Latest Highest Rated. Whether your application is business, how-to, education, medicine, school, church, sales, marketing, online training or just for fun, PowerShow. And, best of all, most of its cool features are free and easy to use. You can use PowerShow.

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Click the answer to find similar crossword clues.Immediate reports of Post-Operative Sensitivity POS reported after restoring teeth with direct composite resin restoration is a perplexing issue experienced by most dentists. In most studies on POS, the three most commonly cited reasons are: polymerization shrinkage of the resin, microleakage around the margins of the restoration and build-up of residual stress in the fabric of the tooth after placement of direct composite restoration.

Knowledge gained by this review points towards soft start mode of polymerization using low light-cure intensities may help to reduce polymerization shrinkage and possibly postoperative sensitivity.

Immediate reports of Postoperative sensitivity POS reported after restoring teeth with direct composite resin restoration [1] is a baffling issue experienced by most dentists.

At-least five to twenty six percent patients report POS immediately after composite resin restoration1. Sensitivity is mostly elicited at the margins of the restorations and sometimes at the center of the restoration inspite of dealing with the occlusal interferences. Composite resins are irritant to the pulp and should be bonded carefully along with additional use of liner, desensitizing agents and resin modified glass ionomers [2,3] where necessary, especially in deep dentinal cavities so as to prevent postoperative sensitivity and subsequently pulp death; as total etch bonding systems may cause detrimental effects on the pulp [3].

Past studies have cited three most common reasons of postoperative sensitivity: polymerization shrinkage of the resin, microleakage around the margins of the restoration, and build-up of residual stress in the fabric of the tooth after placement of direct composite restoration [4,5,6,7,8].

Cross-sectional studies, controlled clinical trials, RCT Randomized or non- randomized control trialsince are included in this review. The reviewed papers are tabulated as: Table 1- which compares studies on the basis of study design; Black Classification; method; possible causes and plausible solutions to POS. Table 1: Review of studies on the possible causes and the plausible solutions of POS. Post-operative sensitivity in teeth after doing a composite restoration is caused by residual stress buildup due to polymerization shrinkage resulting in de-bonding of the restoration ensuing in an enamel crack; microleakage at the margins of the restoration and secondary caries results in postoperative sensitivity [4].

This study used the amount of cuspal deformation as an indicator of polymerization shrinkage i. Another clarification on polymerization shrinkage is the theory of C- Factor or configuration factor that is the number of walls of a cavity the composite resin is bonded on to affects shrinkage [12, 49].

For example in a Class I restoration, the C- factor is 5; higher the C — Factor, more are the chances of de-bonding of the composite from the walls of the cavity due to shrinkage [1, 12, 13]. Therefore to counter the issue of C-Factor; step or pulse curing helps to reduce marginal voids, strain on the cusps and thus polymerization volvo 780 radio Incremental layering of composite as compared to horizontal placement especially in Class I restoration reduces C- Factor from 5 to 0.

Oklahoma serial killer tolerates greater bond stress and better shrinkage stress as compared to the dentin [14]. As dentin has more moisture than enamel thus bonding is less favourable as compared to the enamel.

Furthermore bulk filling the composite resin results in more volumetric shrinkage and encounters more stress as compared to enamel [9].

With a view to measure residual stress this study [5] states that larger the tooth loss more is the polymerization shrinkage weighing down on the tooth itself and less on sbenny patcher restoration or tooth restorative interface.

This study highlights an opinion that the issue of polymerization shrinkage is not due to the property of the composite but that of the tooth by itself i.This question was submitted by a general dentist:. I always worry that the cavosurface margins of class II preps are not fully filled when using composite resin.

Is there a difference in the long-term margin integrity using the following 3 methods? John Burgess and Dr Suham Alexander provided this initial response. Often dentists are concerned about gingival marginal integrity in the proximal box area. Common reasons for marginal leakage are poor adhesive placement or composite resin lifting during placement when the resin material adheres to the packing instrument. This effect can be minimized by lubricating the condenser with bonding agent or alcohol which does not weaken the resin unless a significant amount of the bonding does seeing private parts break wudu is used.

Flowable composite resins round sharp line angles produced during cavity preparation and were supposed to improve marginal adaptation of posterior composites by stretching and acting as a stress breaker. However, a two year clinical trial reported no difference in marginal integrity or success of two types of composite resin restorations lined and not lined with a flowable material. Various techniques have been used for class II composite resin restorations:.

In this technique, flowable composite resin is placed in the proximal box and composite resin is packed on top of the flowable and then cured. The depth of cure in this technique may be hindered especially if the initial increment of flowable and the composite is greater than 2mm. In this case, light penetration through the combination is poor, the bond is weakened and increased marginal leakage may occur. Currently, the author cannot find any clinical studies related to this technique.

Open Sandwich. Fuji IX is used to fill the proximal box to the level of the pulpal floor. Flowable as The Initial Increment. In other situations, flowable composite can be used in the box to fill undercut areas of a tooth preparation and be cured as the first increment.

The rest of the box would be filled with the regular composite resin material. No clinical studies could be found that illustrate that the use of flowable composite offers an advantage to the final restoration. Flowable resins adapt well to angular and rough cavity preparations and no disadvantage to its use could be discovered. Practically, solutions to these types of problems include using a small amount of flowable as a liner, placing a resin modified glass ionomer in an open sandwich technique for high caries risk patients or alternatively, using a moderately condensable composite and carefully condensing it with new clean condensers.

I have been using composite for nearly 30 years and have observed the wear and tear of many composite restorations during this time. Many were placed on dentin gingival tooth structure and have stood the test of time very well.

Microhybrids flow easier than the newer nanofills and nanohybrids and are stronger so I have not gone to these composites for posterior restorations. I also fill the gingival box 2mm and cure and then wedge my tooth. Wedging the first increment will sometimes cause the matrix to move into the box so I cure the first 2mm and then wedge and then add the rest of my mesial or distal wall in one piece. I also fill the rest of the tooth using a technique similar to placing styroform cups together in a sleeve of cups.

I feel this reduces the contraction shrinkage between the cusps and allows the shrinkage to move towards the existing composite.

Has worked well as my restorations are lasting and most new caries is due to poor hygiene. I have many year old composite restorations that are working well.

Just my 2 cents. Studies carried out by David Clark have shown that voids form at the interface between the cavosurface margin and composite ,within the composite between increments. This is a fault in the filling technique another major disadvantage is the inherent polymerization shrinkage that comes with placing composite. Magnification — powerful aid in removal of caries beyond CEJ adaptation of matrix band and wedge to seal gingival seat.

Minimally invasive prep — David Clarks cavity prep which is a modification of a slot with bevelled margins to infinity. Clarks technique involves curing of flowable and paste composite together rather than as separate increments. References the injection molded technique for strong esthetic class ii restorations.

After restoring with Composite Resin Material Before the restoration procedure. Composite restorations are very technique sensitive so utmost care is. COMPOSITE RESIN RESTORATION. Enamel hypoplasia Composite inlays Repair of old composite restoration Patients allergic to metals; 9. Lesion - Specific Restorations. Class I and II Composite Restorations Principles & Techniques. Dr. Ignatius Lee. G.V. Black Classification.

Restorative Composite Resins Dr shabeel pn – A free PowerPoint PPT presentation COMPLEX MULTI-SURFACE COMPOSITE RESTORATIONS PowerPoint PPT Presentation.

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Number of Views Avg rating/ Slides: Provided by: Comp Category: Tags: composite | posterior | resin. Classification of Cavities Class I – Pit and Fissure No tofflemire or matrix required Amalgam or composite Class II – Posterior interproximal and occlusal.

Class I and II Composite Restorations Principles & Techniques Dr. Ignatius Lee Lesion - Specific PowerPoint PPT Presentation.

TRANSCRIPT. Tooth colored restorative materials. Dr. Emad Farhan Alkhalidi PhD conservative dentistry * Tooth colored restoration. PDF Télécharger [PDF] Resin Composites - Diva-portalorg composite restoration ppt Most composites used in dentistry are hybrid materials, so called because.

Cast gold & gold foil restorations were the earliest. Silicate cements; Glass Ionomer cements; Unfilled resins; Composite resins; Porcelain (veneers.

Unfilled resin layer followed by filled composite is introduced into the preparation. STEPS TO BE FOLLOWEDThorough prophylaxis to be done. ANOVA revealed that crown restorations made only from everX Flow composite had significantly higher load-bearing capacities ( ± N) (p <. Direct restorative technique. The effect of cavity configuration on restoration stress.

Available from: URL: cvnn.eu The composite filling has stronger adhesion to the tooth structure. •. Better esthetic. * Use diamond bur 45 degrees to the external tooth surface. composites as (in)direct restorative materials. Basic properties Long-term stable restoration through adapted adhesive system.

Dircet dental filling. Indirect dental filling. Tooth coloured. - Composites. - Glass-Ionomeres. - Compomeres.

Esthetic Restoration of Anterior Teeth

- Impossible to. Decide (use parent). bulk-filling technique and polymerization shrinkage Open in figure viewerPowerPoint. Caption. PowerPoint® presentation slides may be displayed and may be reproduced in print form for instructional Steps in Finishing a Composite Restoration. RESTORATION. WITH COMPOSITERESI N GROUP 2 class 4 anterior teeth. Our Members ○ M. FADLAN FAISAL T SYARKAWI (J). 2 • Composites restorations primarily are retained in the tooth by a micromechanical bond that develops between the material and etched and primed prepared.