Dr Christopher Ho is a dentist practicing exclusively in Aesthetic Dentistry, Prosthodontics and Implant Dentistry in Sydney Australia.
Dr Chris Ho has lectured nationally and internationally and held faculty positions with the University of Sydney, the Global Institute for Dental Education, Academy of Dental Excellence and is a Senior Visiting Teaching Fellow at Kings College London.
The application of rubber dam is recommended to achieve adequate isolation for many dental procedures, helping to provide a clean, dry environment and minimises contamination from saliva and blood.
It also plays a crucial role in preventing ingestion or aspiration of instruments, tooth debris, dental materials, medicaments, irrigants or other foreign bodies. It is often commented that placement of the rubber dam is a difficult procedure and that the time it takes to apply the dam is excessive. The author utilises a technique that has been very useful in his practice in isolating a full arch very quickly, and comfortably for the patient. This technique is a useful one to have in your armamentarium for utilisation within clinical practice. Figure 4: Rubber dam clamps are placed on the molars and depending on the isolation required, clamps can be placed anywhere from 2nd premolar to the 2nd molar.
Figure 5: Rubber dam is stretched over the clamps and then the front part of the dam is carefully directed under the labial sulcus, which effectively isolates the teeth. A tooth fitted with a porcelain fused to metal crown may stain after prolonged exposure to the metal.
It is a frustrating problem because even if you place the margins at a subgingival level, the problem still remains. This kind of remedy is applicable for root canal treated teeth, teeth receiving dental crowns, bridges and veneers. The post Ceramic restorations on Discoloured stumps around the gingival tissues appeared first on Sydney Dentist. Ideally, this issue is resolved by installing dental crowns and bridges on all the teeth to restore the bite and the appearance of the teeth. Since it involves zero tooth reduction, it is pain-free and may be performed without anesthesia or sedative. The post Sonic activated composite in a full arch build-up for extensive tooth wear appeared first on Sydney Dentist. The CAD CAM technology has brought amazing contributions to various industries and in Dentistry, Computer Aided Design, Computer Aided Manufacturing is offered in the form of CEREC, (Chairside Economical Restoration of Esthetic Ceramics). Today there are already several machines available, but the 3M True Definition Scanner is the one that has the smallest camera with 3D video capability. There remains some discrepancy with the workflow, however, but I remain hopeful that things will be resolved eventually. The post 3M True Definition Scanner – the way of the future with Digital impressions appeared first on Sydney Dentist.
When a patient loses all of their teeth, they are essentially relegated to living the life of a “dental cripple” and are compelled to see a Sydney dentist to find resolution. You need your teeth to eat because otherwise you will be limited to a soft, unappealing diet.
You need your teeth to maintain the integrity of your facial structure, otherwise your bite will collapse and along with it, the face will sag and make you look much older. The post Implant rehabilitation in the edentulous jaw: the “All-on-4” immediate function concept appeared first on Sydney Dentist.
The only downside is that the current tips that are used on the previous Demi lights cannot be used on this one, so for those of you that have multiple tips stored, be mindful that they will be deemed useless for the new Kerr curing light. In practical terms, the U-40 Ultracapacitor-powered Kerr Demi Ultra is never more than 40 seconds away from being able to deliver 25 ten-second cures. Unfortunately, sometimes you will come across those frustrating cases when you stick a wedge into a matrix and the bloody gum still bleeds as you work.
One way of adapting the matrix more intimately is the use of another wedge (two wedges) or another neat trick is to use Teflon tape (aka plumbers tape) to adapt the matrix to ensure a clean field to place your composite. This offers proper manipulation of the composite material, so that you can avoid creating dark triangles in between the anterior teeth you are trying to restore. The days of invasive dentistry that involves having to remove vital parts of teeth or cut down teeth for crowns are drawing to a close with the latest in Biomimetic technology. Better than traditional methods, Biomimetic Dentistry does not require a dentist to destroy healthy tooth structure in order to build a new restoration.
The advances in adhesives and bonding materials have improved dramatically over the last 40 years, in so much that dentists can restore many cases that would have required crowns with minimally invasive conservative restorations. No matter how brilliant the Sydney dentist is, did you know that all composite restorations face as much as 5% polymerized shrinkage? Cuspal flexure and microfractures which causes consequent permanent deformation due to the load subjected by the restorative material. In the clinic, I make use of nanofilled composites to remedy these noted discrepancies with hybrid composites.
The article below does not only count the number of benefits one can enjoy with nanofilled composites. The post The centripital layered build-up of a posterior direct composite resin appeared first on Sydney Dentist.
DDS GP is an app for dental professionals that allow them to show dental conditions and treatments to their patients using an iPad.
You can TAP and DRAG items on the screen, to easily show severity of decay, periodontal disease, cracks, and numerous other conditions and procedures.
You can DRAW right on the screen with your finger and you can save your drawings for future use. You can also ADD your own images or photos from your photo library, then draw on and save them.
Finally, you are allowed to SEND or PRINT custom treatment plans to your patients using this app. Dental Navigator is an interactive application, which can be used by dentists to explain different methods of treatment to patients.
This application is an excellent app for patients as it explains the different treatments available in dentistry, and the best thing is it is FREE! This application is a food guide that parents could use to be able to understand the proper dental care that their children need. Dentistry ProConsult is designed to provide dental students with a quick and easy way to review procedures they may have to perform in clinic. You must have JavaScript enabled in your browser to utilize the functionality of this website.
GC Fuji Ortho LC is a light-cured, resin reinforced glass ionomer ideally suited for bonding orthodontic brackets, bands and appliances.
Standard shipping cost ($4.00) is already taken care of - You have an order started with this vendor in your cart, so you will not be charged additional standard shipping for this product. Be the first to write a review for a chance to win a new Ultimate 15-inch Apple MacBook Pro! 34 Superior Bond Compatibility with OptiBond XTR OptiBond XTR Comparative Dentin Bond Strengths with Resin Cements in Self-Cure Mode vs.
He is the Founder and Principal of Care Implant Dentistry and has completed his Bachelors of Dental Surgery with First Class Honours, a Graduate Diploma in Clinical Dentistry (Implant Dentistry) from the University of Sydney, and also a Masters of Clinical Dentistry (Prosthodontics) with Distinction from Kings College London. As well as the provision of isolation and moisture control, there is the added benefit of retraction of lips, cheeks and tongue. The other concern for dentists is that it can uncomfortable for the patient while the dam is being placed due to the stretching required to seat the dam. This is particularly useful when working on multiple teeth with direct procedures like the removal of amalgam and caries, and placement of restorations. If you ask a Sydney dentist about this, you will be advised that teeth could discolour due to age, food, beverage, medications, trauma, dental caries or exposure to highly staining compounds.

This results in an unsightly discoloured stump that often reflects and affects the gum tissue.
It may be performed on porcelain-fused-to-metal crowns, all-porcelain crowns or even zirconium crowns. When there is acid regurgitation or the presence of a naturally acidic oral environment, the teeth may be severely worn away so that the bite collapses as teeth height is reduced on the maxillary and mandibular jaw. Night grinding or bruxism is a paroxysmal habit observed during night slumber, but may also be experienced in the day. When the patient’s bite is wrong or is misaligned, this disharmony can cause damage to the teeth.
This would be acceptable when not much damage has been incurred but when very little tooth surface is left to work with, retention for the prosthetics is highly compromised.
Through the CAD CAM, digital technology is conveniently and practically utilized to provide patients with a better treatment option. Those who are able to afford it can enjoy its amazing features, but it really still remains to be costly—enter 3M True Definition Scanner, 3M’s answer to the expensive digital diagnostic technology.
Digital technology allows perfect recording of detail that no other impression material can exactly manufacture. On the side of the patient, going digital will mean no mess and hassle-free cast fabrications.
With the technology, users enjoy a cloud-based system of collaboration between the dentist, laboratory and others. Through this technology, dentists are able to capture and simultaneously view a true replica of the oral anatomy.
Today, it still takes a few days for actual models to be fabricated, which poses the inquiry of whether or not such models are actually necessary.
The teeth are very essential to any human being and when a tooth or all teeth are lost, chewing efficiency is lost, their level of comfort declines and often they appear to age prematurely. Sometimes patients who have received previous restorations meet a failure in their cases and their teeth are deemed restorable and hopeless. When patients come into the clinic, their oral condition is assessed and the appropriate solution is planned and presented—all encompassing the health and financial capacity of the patient. Kerr have come out with a new curing light that utilises a very different technology in the battery.
Cordless lights come with a battery console, where the battery may be charged and it takes a few minutes for the system to go from empty to fully-charged, so dental practitioners have become accustomed to pre-charging the batteries before use, even keeping a spare equipment as backup. Pit and fissure caries affect the occlusal table and decay of this nature is limited to just one surface, but when caries extend to the proximal areas, a different approach is required. With its help, the dentist is able to shape the composite up to the proximal third of the crown. It is kind of the tissues and it inserts easily through the area between the gum and tooth. Biomimetic Dentistry allows a Sydney dentist to conserve teeth by treating weakened teeth that may be fractured or decayed and protecting them from bacterial invasion by sealing them with an adhesive restoration. Using the latest in technology, we can bond and adhere teeth together and build missing components of teeth without destroying vital tissue. Modern Dentistry believes in conservativeness of treatments and so nowadays we seek to undertake as little prep or even no prep when it comes to applying veneers or offer onlay, partial crown Biomimetic solutions in preference to a traditional crown thus conserving teeth. Although relatively successful and producing increased likelihood for success, understand that carrying out conventional crowns can lead to non-vitality of teeth due to the aggressive preparation required.
These new materials mimic tooth dentin so well that it even fuses to the existing tooth, offering reliable stabilisation and strength to the restoration.
Tooth is drilled to remove diseased tissue and to prepare it to receive the filling material. If the restoration involves the proximal areas, the proximal contacts should be restored harmoniously. We are in the digital age and to better survive, one has to fully integrate the changes into their lives. If you have the new Apple iPad, you can use an HDMI adapter to project the whole application onto a large screen for better viewing.
Its ability to be placed in the presence of moisture with no need for ortho-phosphoric acid etching simplifies the bonding procedure. Visible light-cured, highly filled composite restorative primarily used in Class I and Class II restorations. 5 th and 7 th Generation Adhesives OptiBond XTR can be used with all light, self-and dual-cure resin materials without the need for additional components *Indirect Dentin Bond Strength of 5 th & 7th Gen Adhesives (with Self-Cured Calibra, Variolink, and NX3 Resin Cement). He has over twenty years of experience in complex aesthetic and implant rehabilitations, and is committed to excellence providing you not just teeth but a beautiful smile in a friendly and caring manner. This allows improved access, visualisation and protection of soft tissues from rotary instrumentation.  The use of coloured rubber dam helps to achieve better visualisation of the teeth with a contrasting colour of the rubber dam material. It can also be effectively used in the preparation and cementation of indirect restorations, e.g. An initial remedy for the discoloured stump that has spread to the gingival tissues is to perform an internal bleaching procedure. A more definite solution that we provide involves masking or covering the discoloured stump with an opaque restorative material or composite resin.
It is an involuntary problem that involves the over-clenching of the teeth that often leads to wear facets and damage.
In lieu of invasive and expensive crowns, composite resin is provided to restore the worn teeth. Removing the laboratory technician from the picture, ceramic restorations (be it crowns, veneers or fillings) are fabricated by the Sydney dentist using a machine and are delivered to the patient, on the same day. Especially with the developments with this technology, coming in the following years, you can expect so much more from it.
A lot of discrepancy occur with the use of rubber impression materials—and a lot of things are at play here.
A growing number of the population possess a terminal dentition and the ability to retreat is restricted due to the poor remaining tooth structure and support, combined with limitations from the financial burden of full mouth reconstruction.
A flowable or mouldable material utilised for restorative and luting purposes are hardened using a light that is gun or pen type and may be with or without a cord.
I was involved with the product evaluation that was ran about 2 years ago at Kerr HQ in the USA, and we were blown away with the new technology. When the sides are involved, a barrier or matrix band is utilised to keep saliva and blood away from the area and properly restore the proximal and contact points.
By utilising the philosophy behind Biomimetics, the preparation needed is often reduced, thus minimising the biological impact to the tooth.
A continual fluoride release reduced the risk of decalcification and helps maintain the soundness of enamel. He is currently Senior Contributing Editor for the Australasian Dental Practice and on the Advisory Board of Dental Asia. It gives the patient a smile that looks dirty, old and diseased, especially since the stained appearance reflects on the soft tissue or gums too. This is most appropriate for root canal treated teeth, with effectiveness that is quite unreliable.
Using Kolor +- Kerr Dental we overlay the darkened area to mask the unappealing area so that it does not reflect on the crowns and on the gum tissues. The upper and the lower teeth contact each other, in damaging fashion so that teeth become excessively worn away. Utilizing a template, a specialized bonding adhesive and reinforced composite resin, the patient is given a better reason to smile.
The digital picture produces accurate models that will aid in the success of the overall treatment process. The trays are forced into the mouth along with the rubbery material and it often brings the patient to gag.

It makes use of the ultracapacitor technology to re-energize the battery to full power in under 40 seconds—this means that the waiting time is cut down significantly. Additionally, when this route is opted, many times the preparations can be kept at a supragingival level, leading to the preservation of healthier tissues that allow easier impressions and simpler adhesion procedures.
For any restorative or cosmetic job done, a patient should appreciate any effort to get their smiles back in the healthiest and most aesthetically appealing manner.
Instead of packing a bulk of composite into the tooth, the filling is brought in, little by little, in a technique called “layering”. These days, we have multiple technologies in our grasp, and one of the easiest for patients to understand is using a tablet like an iPad. Additionally, debonding can be accomplished faster with less risk of damaging the enamel than with composite resin bonding systems.
He has also worked as a consultant and key opinion leader for several leading dental manufacturers. Although ultra capacitors are similar in size and shape to traditional batteries, they work much differently—re-energizing in a matter of seconds, and maintaining their energy capacity year after year. It is inserted in between the teeth, is held in place with the help of wedge and the restoration is given to the tooth without any problem. With the use of a nanofilled composite, you already improve success rates; when you perform the layering technique, you increase polymerization depths, improve aesthetic results and decrease polymerization stress. Compatibility with indirect bonding procedures is due to the low film thickness (approximately 10?m) of cured Adper Single Bond 2. He is in referral based practice in implants, aesthetic dentistry and complex oral rehabilitations.
This sets you apart from another Sydney dentist and helps educate your patients in a more effective manner. Use of etchant is critical for both enamel and dentin surfaces Precautionary Information for Patients and Dental Personnel 3M ESPE Scotchbond Etchant contains Phosphoric Acid. Precautionary Information for Patients This product contains substances that may cause an allergic reaction by skin contact in certain individuals.
If allergic reaction occurs, seek medical attention as needed, remove the product if necessary and discontinue future use of the product. Precautionary Information for Dental Personnel This product contains substances that may cause an allergic reaction by skin contact in certain individuals.
Use of protective gloves and a no-touch technique is recommended. Acrylates may penetrate commonly used gloves. If product contacts glove, remove and discard glove, wash hands immediately with soap and water and then re-glove. The light curing times instructed with this product assumes the use of a 3M ESPE light curing unit or other dental visible curing light of comparable intensity.
Curing lights should be checked often for proper output using a reliable light metering system. Use of compressed air is not recommended to remove pooled water remaining after the etch step—blot excess moisture from the preparation using a cotton pellet or mini sponge.
Place restorative material in increments, curing each increment separately. Adequately cure restorative according to instructions for shade and thickness of restorative and light exposure time. Holding the syringe with the tip away from the patient and any dental staff, express a small amount of etchant onto a dispensing pad or a 2×2 gauze to assure that the delivery system is not clogged.
If clogged, remove the dispensing tip and express a small amount of etchant directly from the syringe.
Twist on storage cap. Storage of the delivery syringe with a used dispensing tip or without storage cap will allow drying of the etchant and consequent clogging of the system. If desired, the etchant may be extruded onto a dispensing pad and applied with a brush or other appropriate instrument. If a liquid etchant is desired, the etchant may be dispensed into a dappen dish and stirred to increase its fluidity. With your thumb and index finger of the other hand, squeeze the large blister to transfer the adhesive into the chamber enclosing the applicator. Vial: Pinch the sides of the cap to release the locking mechanism and flip the cap back to reveal the dispensing tip. Restorative placement, cure and finishing: Refer to manufacturer’s instructions for placement, cure and finishing of restorative materials. Silane treatment: Porcelain bonding surfaces should have been etched using hydrofluoric acid by the dental laboratory.
Clean the prepared teeth in preparation for seating and bonding using a plain flour of pumice slurry. An additional 15 second etch time may be appropriate for teeth that were not prepared using a diamond or bur. Adhesive application to veneer: Apply 1 coat of adhesive to the acid etched, silane treated veneer.
Luting material application to veneer: Apply RelyX Veneer Cement to the bonding surface of veneer. We recommend curing the gingival margin first, followed by the body and the incisal margin. Roughen the existing material: Roughen the surface of existing amalgam or composite using either a bur, diamond or a sandblast technique. Adhesive: Immediately after blotting, apply 2-3 consecutive coats of adhesive to etched enamel, dentin and existing restorative material for 15 seconds with gentle agitation using a fully saturated applicator. Masking: In the case of set amalgam, mask the metal surface with an appropriate masking agent. Restorative placement: Refer to manufacturer’s instructions for placement, cure and finishing of restorative material. Adhesive: Immediately after blotting, apply 2-3 consecutive coats of adhesive to etched enamel and dentin for 15 seconds with gentle agitation using a fully saturated applicator. Instructions for Amalgam and Indirect Bonding Procedures (using RelyX ARC adhesive resin cement) Physical properties of today’s esthetic indirect restorations require that they be bonded into place to maximize the strength of the restoration as well as the tooth. A general perception may exist that light cured adhesives cannot be used for indirect restorations. It’s true that many conventional light cured adhesives have a higher film thickness and cannot be used under a fixed prosthesis. Note: Care is required with any bonding agent used beneath precision castings because added film thickness may preclude accurate seating.
Avoid adhesive pooling in areas of the preparation that would effect the fit of any prosthetic device. Prepare the endodontically treated tooth to receive the post (a root apex sealer and gutta percha filling approximately one third of the root canal are recommended). Apply cement to the bonding surface of the preparation (in and around canal using a periodontal probe). Light cure for 40 seconds from the occlusal surface to allow immediate placement of core build-up material. Matrix application: Lightly lubricate the inner surface of the matrix band with hard wax or petroleum jelly before placement. Adhesive: Immediately after blotting, apply 2-3 consecutive coats of adhesive to etched enamel, dentin and any residual restorative material for 15 seconds with gentle agitation using a fully saturated applicator.

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