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Archive for March 2014

As of April 1, 2014, the Childrens Oral Health Program (MSI) will be increasing the age of eligible coverage to under 15. This means that children will have basic dental coverage until the end of the day on their 15th birthday. 

It is important to note that this program is far from comprehensive and is designed to provide only basic coverage for dental treatment. The program will cover one examination, 2 bitewing radiographs and ONLY ONE PREVENTATIVE SERVICE per year. As usual, basic restorations (or fillings) are covered.

The problem with the program is that these coverages are generally far less than what the average individual requires to maintain their oral health; especially for teenagers! Changes in hormones and the continued eruption of the adult dentition in these years places teens at a high risk for dental problems. Crowding of teeth during eruption, poor oral hygiene techniques/ practices and diet are a few other additional risk factors. To reduce risk, most individuals will require at a minimum, TWO PREVENTATIVE SERVICES per year. 

Many parents have been falsely informed and believe that this program is comprehensive meaning that all services will be covered. The purpose of examination is to not only identify dental problems (such as tooth decay), but to establish the patient's RISK. Each treatment plan is based on the individual's needs to reduce risk. Because the program is basic, it rarely covers the pateint's needs - this means there may be treatment required that is not covered by the program. 

For more information on this program, please feel free to contact Dr. Luke Haslam and staff at Basinview Dental Centre or the Quickcard Nova Scotia Chilren's Oral Health Care Program.


When looking at this image, there are a few obvious problems:

The dark dark discoloration of the tooth is due to marginal leakage and subsequent recurrent decay beneath the old filling. There is a significant wear facet on the buccal cusp extending distally indicative of malocclusion and possibly parafunction (clenching/ grinding). There is a craze line in the enamel running from the buccal cusp tip distally through the isthmus, beneath the old restoration and ending on the lingual cusp. The proximal surfaces are overbulked with old amalgam giving the tooth poor contour and making hygiene difficult.

The patient was advised of the poor condition of this tooth but decided not to proceed with any treatment until there was a problem with the tooth. A discussion ensued that involved the malocclusion, occlusal wear, recurrent decay and risk of fracture. A full coverage restoration would be ideal to optimize occlusion, strength and gingival health. The patient indicated that he was not interested in treatment because the tooth has never given him problems.

A mere 4 months after our discussion regarding this tooth, the patient returned with a fractured filling. There was some discomfort when biting and the appearance of the tooth was highly suspicious for fracture.

The tooth was anesthetized and isolated with rubber dam for comprehensive assessment: the mesial portion of the amalgam was fractured and missing; there was a large gap in the cavosurface margin, the remaining filling material was mobile and the buccal cusp moved with light pressure.

The restoration was removed to reveal the source of the problem - a clear vertical fracture completely dividing the buccal and lingual segments of the tooth. Unfortunately, this type of fracture can not be repaired and the only course of treatment was immediate extraction of the tooth. 

Timely care and maintenace of existing restorations are a crucial component of comprehensive dental care. As old fillings, crowns, etc. wear down, they dramatically increase the risk of fracture to the remaining tooth structure. Also, our bite will change with time such that even regular bite forces can lead to trauma to our teeth. 

Don't let this situation happen to you. Waiting until there is a problem can often be too late and very costly - as in this case where the tooth was nonrestorable. A replacement for this tooth will cost the patient more than three times what the initial treatment proposal was. Being proactive with oral health care is the best way to save time, money and maintain your natural, healthy smile.

Contact Dr. Luke Haslam at Basinview Dental Centre to schedule your consultation today!

A patient presented with discomfort on the lower left side due to pulpitis of tooth 3-5. The tooth had been previously restored with a very large and deep composite restoration. The depth of the decay and trauma associated with removing it caused an irreversibe inflammatory response in the tooth known as pulpitis. This tooth required immediate endodontic treatment to remove the inflammed pulp tissue and resolve the discomfort.

Traditionally, this treatment is completed using chemical irrigation of the canal system to ensure the organic tissue and bacteria have been removed from the system. Some chemicals can be dangerous and difficult to use. Also, there is little guarantee that the chemicals introduced into the space can completely reach the apex of the tooth without passing beyond the tooth into the periapical tissues.

At Basinview Dental Centre, Dr. Luke Haslam does not use chemical irrigation to complete root canal disinfection, but rather uses laser energy applied by the Waterlase iPlus. With this system, root canals are cleaned and shaped using traditional instrumentation (hand and rotary endodontic files; stainless steel and/ or nickel titanium). The irrigatant used is simply distilled water - zero complication if any water passes beyond the tooth apex. Once the canal has been shaped as desired, a special laser tip is inserted into the canal space. Once the canal is shaped properly, this tip can be placed into position to allow laser energy to disinfect the tooth apex. Laser energy is applied in a series of passes throughout the canal system until the desired disinfection is achieved - for some teeth, this may merely take 30 seconds!

There is no discomfort or chemical smell. The laser will remove organic debris and bacteria 1000um laterally from the main canal.  This means far greater penetration of disinfection than chemical systems into lateral canals, fins, isthmuses and apical deltas. These areas are a common cause of root canal failure - the chemical disinfection simply can not remove was it can not touch.

The root canal completed for this patient clearly shows a complex apical delta - there are at least 5 openings at the apex of this tooth. The laser disinfection allowed for these areas to be easily cleansed prior to obturation which allowed the gutta percha filling to flow into these areas. This will greatly improve the patient's chance of success with this treatment. 

The patient noted no post-operative discomfort and has been symptom free since the treatment was completed 4 months ago. The patient has scheduled to have a full coverage crown placed on this tooth to complete the treatment for this tooth.

This patient presented for an emergency assessment of a fractured laterla incisor. The tooth had been previously endodontically treated (i.e. root canal) and had a large composite resin filling that encompassed all tooth surfaces. Due to the extent of these restorations, the tooth was in a highly compromised state and predisposed to fracture. (Sorry, the pre-operative photo did not save properly).

Luckily for this patient, there was enough tooth structure and healthy supporting tissues remaining to allow for a new restoration. The large amount of coronal tooth structure missing meant osseous crown lengthening was required achieve a stable crown margin that would not interfere with the biologic width (i.e. irritate the supporting tissues and bone causing chronic inflammation and premature failure of the restoration). 

Crown lengthening was achieved using the Waterlase iPlus. The bone was moved apically 1-2mm as required and the soft tissues were recontoured. There was no need to delay placing the restoration 6-8 weeks as is normally required with traditional crown lengthening, because there is minimal risk of recession following this treatment with the Waterlase.

There is a video of this process at http://basinviewdental.com/dental-videos/

To increase retention, a Fiber Lux Parapost was placed into the root canal space of the tooth. This radiograph shows the post drill inserted into the canal as a reference to guage both the width and length of the canal space. The final post was placed 5mm from the root apex. 

Once the post and resin core complex were completed, the final Cerec crown was fabricated using EMax (lithium disilicate) material. The crown was sintered in a ceramic furnace and stained to match the adjacent teeth. Two layers of glaze and polish were completed to stabilize this color.

Here is the post-operative view at two weeks following treatment.Other than minor healing still visible along the buccal margin, it is difficult to tell which tooth was restored. The disto-buccal tilt of the tooth is a product of the patient's occlusion and could not be corrected without significant alteration of the opposing lateral and canine teeth. The patient was happy to simply dupliacte the appearance of his tooth prior to the fracture. He is now going to return to have the same treatment completed for the upper left canine which currently has a large composite filling, 4 stainless steel pins and has been endodontically treated. The patient has chosen to proactively restore this tooth before it fractues

Thanks to the Cerec chairside system, the Waterlase iPlus and our Programat CS sintering furnace, this treatment was completed for this patient in a single appointment. No temporary crowns were required and there was no post-operative healing period following the minor crown lengthening. With traditional methods of treatment, this case would have taken months to complete. Crown lengthening would require 4-6 weeks of healing at a minimum while the patient wore a temporary crown. Once healing was complete, the temporary would be removed and a final impression fabricated to be sent to a dental laboratory. The temporary would be replaced and the patient would return in another 2 weeks for crown try-in. If the esthetics or fit were not acceptable, the crown would be sent back to the laboratory for adjustments while the patient wore the temporary for an additional week. In total, this could have taken 9+ weeks to complete! 

At Basinview Dental Centre, Dr. Luke Haslam was able to complete this case in 2 hours! With these technolgies, we will not only see a reduction in treatment time, but also a reduction in treatment cost. In this case, the patient did not require referral to a periodontist to have the crown lengthening completed (as would be traditionally required). There was no commercial laboratory used to fabricate the restoration so there was no third party bill to pay. The patient was resposible for the treatment time and materials only which saved this patient close to $1000.00.

To learn more about our technology, please feel free to schedule a consultation with Dr, Luke Haslam at Basinview Dental Centre.

The patient presented with two fractured central incisors. The right central incisor was endodontically treated and covered with a failed PFM crown. Unfortunately, the tooth was no longer restorable and required extraction. The treatment options were reviewed including a discussion regarding the state of the remaining anterior teeth. The patient chose to proceed with a fixed bridge restoration to restore the entire anterior segment from canine to canine. The patient also chose to extract the left central incisor.

Here are the pre-operative images of the anterior segment:

The central incisors were extracted and the remaining anteriors were prepared as bridge abutments (i.e. teeth 13, 12, 22 and 23). A temporary bridge was fabricated using Luxatemp and cemented in place with TempBond NE. The temporary was contoured to include ovate pontics for teeth 11 and 21 (right and left central incisors) to give the teeth a natural emergence profile. Below are the preparation and temporary photos taken 4 weeks after inital treatment. Normally, a longer healing period would be used, but in this case the patient had limited time constraints.

For the definitve restoration, a zirconia framework was chosen for both its esthetic nature and strength. The patient's deep bite and heavy occlusion required that lingual reduction of the abutment teeth be maximized. The opposing teeth were also recontoured to improve contour, contact and esthetics. Below are the final photograhs taken immediately post cementation.

In the lingual view, you can see the monochromatic, opaque nature of the zirconia framework. It provides excellent blockout of the dark, underlying abutment teeth resulting in a more life-like and vital appearing restoration. Layered procelain was added to the facial surface of the bridge to give the smile its natural color, reflection and translucency.