Showing posts with label mn dental labs. Show all posts
Showing posts with label mn dental labs. Show all posts

Tuesday

Dental Laboratory Implants Solutions: Porcelain to Zirconia Implant Bridge

A past dental laboratory newsletter published by Northern Dental Alliance member Renstrom Dental StudioInc. featured an implant bar overdenture that was designed to replace a patient’s existing lower denture. Although there are many advantages to this prosthesis, another fixed option for the patient might have been a porcelain to zirconia screw retained implant bridge, also known as a PIB.

"This case was a fun case to do. The patient was extremely satisfied with the looks, pronunciation, and occlusion of her new teeth and I am confident that the work is strong and easily retrievable. I am very satisfied with Renstrom (MN lab) and look forward to doing more large cases like this with them." Dr. A Johnson's Dentistry

A full arch zirconia dental bridge is strong, durable, and most esthetic of anything else. The only major disadvantage is the higher cost associated with it, but with zirconia at a fixed price it is still more affordable than dentistry metals.

With this particular dental case, the patient already had six implants supporting a titanium implants bar with a maxillary overdenture. Due to repeat acrylic chipping, she desired a more durable dentistry solution.

The process of laboratory fabricating her PIB dental bridge is shown in the photos below. The turnaround time at the lab for a case such as this is estimated about 3-4 weeks but the dental patient can expect to schedule four or five appointments during this time.

The entire dentistry procedure can take anywhere from two to four months.

When working on dental implants case, Renstrom lab is always happy to assist in determining the best treatment option for your patient!
  1. Patient before with maxillary implant overdenture.
  2. Removal of titanium implant bar and denture.
  3. A verification jig was made from the master cast to assure fit and accuracy of the final prosthesis. The full contour wax-up is sent to the dentist for evaluation.
  4. A cut-back is done and the copy mill substructure is scanned using the NobelProcera Scanner.
  5. The milled zirconia framework is sent to the dentist for patient try-in.
  6. ZirLiner was first applied to the framework and the e.max Ceram porcelains were used for the build up.
  7. The occlusal and lingual surfaces of the posterior restorations/teeth were left non-layered for increased strength.
  8. Completed build up showing the natural contours and pink porcelain used on the gingival areas.
  9. Dental patient after with maxillary PIB.
For more about Lab Restorative Dentistry, Dental Implants. and other treatments like Overdentures,

CONTACT

Renstrom Dental Studio, Inc
Renstrom.com
Vadnais Heights, MN
651-407-0491


Renstrom Dental Studio (MN LAB) is a NDA Member.

Story RePosted by


Dick Chwalek, NicheDental.com

Monday

Dentists: Selecting Photography Equipment, Part 2 of MN Dental Lab Series

 ~ By Jeff Benson, DDS • Renstrom Dental Studio

Renstrom Dental Studio (MN Lab) Summer Newsletter

In the first article in Renstrom's dentistry photography series, I talked about the benefits. If you missed it, go to our website at Renstrom.com, click the news tab and then click the Spring 2012 newsletter.

Most dentists would agree that dental photography would be a helpful tool for communicating with their patients and dental laboratories, but many practices still have not made photography part of their daily routine. Many of these practices are concerned that photography will slow down production or that it will be difficult to get high quality photos, but the reality is that those practices that do take photos routinely find that it takes very little time and that the quality of the photos is consistently excellent.

Ring Flash
Modern digital dental photography systems make it easy, even for beginners,to get good images with just a little practice. Once you begin to take photos on a regular basis, the quality of your photos will quickly improve to the point where you’ll be proud to use them to communicate with your patients and your lab.

The key to success is feedback, and today’s digital dental camera systems give you high resolution feedback about your photo’s quality, right on the camera’s display, immediately after the photo is taken. If you don’t like a photo, just delete it, adjust your technique and take another one until you have the quality photo you want. It’s amazing how quickly your technique improves when you have this immediate feedback.

So, what equipment do you really need to take great dental photos? There are two distinct types of camera systems available for quality dental photography: (1)Digital SLRs and (2)Point and Shoot cameras that have been “adapted” for dental photography. Both systems are capable of producing acceptable photos but the SLR systems will produce significantly higher quality photos because the lens and flash are specifically designed for close-up photography. Lets look at digital SLR systems.

Twin Point Flash
The dedicated macro lens is the heart of the digital SLR dental photography system. These lenses are capable of capturing very accurate images of the color, contour and surface texture of the teeth, gingiva and lips. The focal length of the macro lens to use with consumer grade digital SLR camera bodies, should be between 60mm and 105mm. The trend, however, is toward lenses in the 60-to 85mm range because they make it easier to get sharp focus on all the teeth simultaneously.

A dental SLR system will have a flash system that evenly illuminates the oral cavity while minimizing shadows and glare. Through-the-lens (TTL) flash exposure control capability on modern SLR cameras ensures good exposure over a wide range of magnifications and working distances.

Your choices are either a ring flash or a twin-point flash. The ring flash illumination is very even, with good penetration into the back of the oral cavity, but it is prone to glare and doesn’t show surface texture well. The twin point flash greatly minimizes glare and more accurately shows surface texture and incisal hue and translucency, but it doesn’t penetrate to the back of the oral cavity quite as well as the ring flash. Choose the flash system that best meets your needs.

Most modern digital SLR camera bodies, if paired with the lens and flash recommendations above, are capable of taking great dental photos,so you really don’t need a very expensive camera body.

One camera body feature that is very helpful,though,isahigh resolution LCD screen so you can better evaluate your photos as you take them. The Canon T3i and Nikon D90 have high resolution LCD’s (about 1 million pixels) at a reasonable price.

So, you ask, “where should I purchase my camera system?” If you’re not intimidated by buying the right components and making the changes to the camera menu settings, you can save some money by assembling your own system.

If you’d rather just get the camera and start shooting with it right out of the box, I suggest you go to www.photomed.net and buy one of their digital SLR systems, or their Canon G11 Point and Shoot system, both of which come with most everything you need, setup and tested, in a handy storage case.

Either way you choose, I’m available to help you decide what you need, set it up and train your staff to get your office started on the path to better patient and laboratory communication with dental photography. Whatever your dental photography needs or questions may be, I’d be most happy to help.

Sincerely,


Jeff Benson, DDS


Mon or Wed


CALL

651-407-0491

or


Email Jeff@Renstrom.com

Visit Renstrom.com

Watch for Part Three of Dr. Benson's Dental Photography Series in the Fall Renstrom Dental Studio Newsletter

~ Part 2: Photography Newsletter Series also published on Renstrom

Renstrom Dental Studio (MN Lab) is also a member of the Northern Dental Alliance.

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Article Reposted by

Dick Chwalek
NicheDental.com

Dick is also a co-founder, member of the Northern Dental Alliance.

Dentists: Choosing the Right Materials in Restorative, Implants, Cosmetic Dentistry

  AFTER • IPS e.max crowns #6-#11*  
As dentistry and dentists continue to shift in the direction of metal free restorations, it is imperative for both the dental clinician and technician to understand differences in materials as each one has the ability to achieve different things.

If we consider ourselves a team working towards the same goal, Renstrom (lab) and dentists should be on the same page at all stages of the dental treatment plan. When the doctor office provides the necessary information as well as the objectives of the dental patient, it makes it easier for the laboratory technician to choose a material that will deliver the best outcome.


Trying to associate each dental material with its unique brand name can be confusing, especially now when there are so many. Dental lab technicians receive a lot of training and education on products at the lab, but at times it can be overwhelming for our doctors.

Although Renstrom generally does make suggestions based on the circumstances of the case, it is beneficial for doctors to be familiar with the different options. The easiest way to differentiate dental products is to understand the technique or technology that each employs.

At Renstrom lab, usually breaks this up in to roughly four different categories, and also look at some general guidelines.

1.) Feldspathic (smile veneers on refractory die): Oldest system in metal free technology. Used when there is a conservative dentist prep design in order to preserve the natural tooth structure. Indicated primarily in the anterior region for teeth with good underlying dentition.

2.) Pressable Ceramics (i.e. Empress, Authentic): After waxed, sprued, and pressed to ingot, cut-back and layering technique is used to achieve desired smile, tooth aesthetics. Doesn’t have the masking ability that zirconia would if the tooth is darker.

3.) Zirconia (i.e. Lava, Procera, InVizion): Copings are designed and fabricated by dental CAD/CAM milling machines. The coping is designed with the required thickness needed for unsupported porcelain to maximize the longevity of the restoration. This is the strongest of the layered all-ceramics. Can be used for crowns, bridges, and dental implant abutments.

4.) Lithium Disilicate (e.Max): This universal dentistry material is either pressed or milled from a variety of translucent blocks/ingots. Applications include full dental crowns, smile makeover veneers, implant abutments, and three unit anterior bridges. Can be pressed as thin as .3 mm but must consider the stumpf shade of the prepared tooth.

The incisal cut back is done on anterior tooth restorations for added porcelain effects. A Shoulder/chamfer margin is needed for full contour crowns and sharp angles should always be eliminated. The full contour tooth structures are stained and glazed, which eliminates the possibilities for porcelain chipping, and therefore increases the strength and durability of the tooth restoration.

When selecting the best dental material choice, dentists should consider the following factors; stumpf shade, occlusion, single unit/bridge, and also cementation preferences. You should also consider the possibility of any future needs of the patient so that similar materials can be used for optimal esthetic matching.

It is always good to keep accurate records of the specific type of crown or bridge, product, and the shade of the patient. This way if something needs adjusting or future work is needed, a more predictable result can be expected.

To ensure the success of the dental material chosen, check all requirements of the product at hand. Proper tooth prep design is a must when it comes to all ceramics as sharp angles and feather edged margins can lead to early failures. Also, the required thickness of each product can vary and so the specific guidelines should always be followed.

If you are a dentist with questions regarding materials or a particular case, we encourage you to give Renstrom Dental Studio (laboratory) call so we can discuss the best treatment plan for your patient!

CONTACT

Renstrom Dental Studio, Inc
Renstrom.com
Vadnais Heights/St. Paul MN


651-407-0491


Original Minnesota Dental Lab Materials Article posted here.

Renstrom Dental Studio (MN Lab) is also a Northern Dental Alliance member.

Reposted by
Dick Chwalek
NicheDental.com

Dick is also a Northern Dental Alliance member.

Thursday

ADA Identalloy Certificates: Vital Areas for Dentists to Keep in Mind

Evidently, things just aren’t the same as they were two or three years ago. Aside from the recent recession, technology has also been a contributor to the continuous changes taking place in dentistry.

Laboratories have had to invest in new systems and materials in order to offer their dentist clients the latest products. This has come as a challenge for smaller laboratories who struggle with having the production levels of a large corporate lab.

Some of these small local labs have opted to join alliances with one another at a national level in order to remain competitive. The concern then is that the level of personal attention and service may differ from that of a smaller lab.

Big or small lab, it really boils down to what is most important to the dentist. Although there may be advantages and disadvantages to both, a few questions should be asked regardless the size of the laboratory.

1) Are the materials used genuine and ADA approved? 

Everyone is trying to cut costs these days, which is even more reason to verify the authentication of the materials your lab is providing. This includes all components, especially implant parts.

A dentist might question how their competitor down the road can charge a third of what they are but they should also question how a lab can offer an implant restoration at such a low cost. This stands true for gold and PFM restorations as well.

With gold at an all time high, it’s hard to believe how labs can offer high noble/noble crowns at incredibly low prices. To assure you’re not receiving any substitute metals or a lesser alloy than prescribed, check for an Identalloy certificate with each case.

Make sure you are actually receiving what it is you are paying for. Any reputable lab would be happy to provide an authentication sticker for their products.

2) Is any of the work sent offshore? 

Some labs send their work overseas to countries with low labor and production costs. This information may be disclosed to their dentist clients but many times it’s not.


Is there anything wrong with this?

Perhaps not, if they can prove that the materials are in compliance with the FDA and ADA laws like U.S. labs now do. Lead contamination has already been an issue with crowns, putting both dentist and patient’s health at risk.

An overseas' crown might cost a Lab $25, which they can then turn around and sell at a price less than their competitors, still making a nice profit. A crown made with quality craftsmanship and ADA materials is tough to find for under $200.

Once again, just be sure to ask where the work is being done at.

3) What is the quality control process with each case? 

Quality is the differentiator between a good laboratory and a great laboratory. The number one reason dentists switch labs is due to inconsistent quality. Every lab should have a structured quality control checklist.

Of course a three-day turnaround time is wonderful, but when and how is the work thoroughly being checked? Although technology today has improved efficiency in labs, quality control still takes time at each stage in the fabrication process.

An entire day should be set aside for final checkout so that adjustments can be made if needed. Does the lab have a consistent team of technicians or do they employ subcontractors that come in at all hours of the day?

Every doctor’s expectations are different and every technician should be fully aware of what they are. Labs should have a system in place to track the feedback of each case. This way if a problem is occurring, it can be taken care of immediately.

A structured quality control system is beneficial for all sizes of laboratories.

4) Can I come and take a look at your lab? 

If your lab is as top quality as they claim to be, they will gladly invite you in for a lab tour. Take a look at the cleanliness and professionalism of the establishment.

If you send patients to the lab for custom shade consults, keep in mind that their impression of the facility and how they are cared for while there is a direct reflection upon you. Look around at the neatness of the workbenches and case pans.


Is there stone all over the articulators and models? Are there empty pans sitting around on shelves, and if so where is the work being sent out to?

You can usually tell when a lab is certified and has certified technicians working for them because their achievements would be displayed just as most are in a dental office.

It is never a bad idea to know exactly who and what you’ll be working with.

5) Are there open lines of communication? 

When it comes to dental restorations, It takes a team to provide patients with the best possible outcome. Although the lab work is done behind the scenes, they are still a big part of this team.

Communication is crucial when it comes to case success. It helps to have a good relationship with those working on your cases so that you fully understand each other’s expectations.


Do you have the ability to treatment plan cases with your technician or lab owners? Can you rely on your lab as a resource?

It’s difficult to stay abreast of the rapid changes in dentistry and can be nice to look to your lab for advice. Does your lab make sure you’re aware of the newest materials and latest advancements in technology?

Some labs offer so much more than just the fabrication of a crown, and most of the time the so much more has a lot to do with communication.

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Story originally...

For more about Laboratory Restorative and Cosmetic Dentistry Services and Techniques,

CONTACT

Renstrom Dental Studio, Inc
Renstrom.com
Vadnais Heights, MN 
651-407-0491

Renstrom Dental Studio (MN LAB) is a NDA Member.


Story RePosted by

Dick Chwalek, NicheDental.com
  • Developer of Connective Communication©