dental pulse

2013-10-02T11:02:00.002-07:00

BYE BYE painful injections for dental treatment...!

Hello friends, today i would like to offer everyone an insight on the comparable and needle free pain control methods in dentistry.

1) Electronically delivered anesthesia (also called trans-cutaneous electrical nerve stimulation [TENS]).

This is an alternative to the shot of anesthesia.

Adhesive pads are placed on the face and a battery-powered device sends electrical impulses to the treatment area to numb it. The patient and the doctor can control the level of stimulation through a hand-held unit.

Another form of electronically delivered anesthesia is called cranial electrotherapy stimulation. Under this technique, electricity is passed into the brain, which causes relaxation.

Again, the patient or doctor controls the intensity of the current, increasing or decreasing it to control the pain as needed.

Advantages:- as soon as the device is switched off, the effect of anesthesia diminishes almost instantly unlike LA. And the patient is able to drive and resume normal activities immediately following the dental visit unlike sedation or GA.

2)LASER drills:- Some dentists are now using lasers to remove decay within a tooth and prepare the surrounding enamel for receipt of the filling. cavity prep. with LASER is painless and thus no need for anesthesia .

=> other methods like performing procedure under:--
3) N2o (laughing gas)
4)oral conscious sedation
are also effective in pain control but have their own merits and demerits.

also some methods which are not yet clinically proven have been advised like => acupressure and acupuncture hypnosis etc

so as science advances , newer methods of pain control may finally help to remove needle phobia amongst patients and make them seek dental treatments promptly :)

2012-08-19T11:15:00.000-07:00

Donate your child's teeth and save lives

The next time your child's milk tooth is about to fall, instead of summoning the tooth fairy, donate it to a stem cell bank -- which could help treat a range of diseases including parkinsons and alzheimers in adults.

Stemade has opened their first dental stem cell bank in the city where it is now possible to freeze your dental stem cells for future use. The bank, which is functioning in Mumbai, Delhi, Pune, Bangalore and Hyderabad, has now opened a facility in Chennai, too.

Dental surgeon and oral pathologist, Dr K Ranganathan said that adult stem cells are of two types, hematopoietic stem cells that form blood cells and mesenchymal stem cells that form connective tissues. "Dental stem cells are mesenchymal stem cells that can be potential treatment options in diseases like parkinsons and alzhemiers," he said. He also added that dental stem cells, because of their place of origin, were more versatile than hematopoetic cells. "The jury is out on this, but we feel dental stem cells are more competent," he said.

Dr Ranganathan also said that the biggest advantage of the dental stem cell banking was that it was a non-invasive procedure and the teeth would be of no use to the person who would anyway throw them away. "Besides it is a great opportunity for people who have missed out on banking their cord blood cells to bank their dental stem cells, as dental stem cells can be extracted at any stage," he said.

Managing director of Stemade Shailesh Gadre said that unlike umbilical cord cells which are used to treat blood-related diseases like leukaemia and thalessemia, dental stem cells have the ability to treat certain forms of cancer, heart disease, periodontal diseases and can also be used to grow replacement teeth and bone. He added that the procedure of extraction would have to be done while the milk teeth was about to fall or when the wisdom teeth were about to be extracted. "The dental pulp of the teeth is the source of these stem cells and the pulp is more usable when they have a blood supply," he said. He also added that dental stem cells have high regeneration capacity and multiply fast.Stemade has partnered with seven dental clinics in the city which are equipped with all the facilities to perform dental stem cell extraction. The cost, said Gadre, would work out to Rs 1.5 lakhs for the 15-year period for which the dental stem cells were being stored. "The processing fee is Rs 60,000 and the banking cost is Rs 6,000 per year," he said.

2012-08-19T11:09:00.001-07:00

Whole teeth grown from molar stem cells in mice

Few months ago in my blog , i had discussed about how close researchers are to develop technique of growing teeth by genetic engineering. Friends that time has come really fast ......

actual photgraph of implanteed mandibular teeth

Researchers in Japan have grown functional teeth using cells taken from a mouse molar as starting material. The group grew these cells for a few days in the lab, then placed them into a tooth-shaped mold and implanted the mold into the mouse kidney where they were left to grow for about two months.

What the group found after that time looked like a tooth, had the normal structures of a tooth and was able to implant normally into the jaw of a mouse. The mouse was able to chew normally using the engineered tooth.

The work was published on July 12 in the journal PLoS ONE. In a Reuters story about the work,Takashi Tsuji, who led the research, said two things are needed before dentists can replace artificial bridges with teeth that implant and function just like the original set. One is learning how to grow the teeth in a lab rather than inside the kidney.

The other is finding the human equivalent of the cells they took from mouse molars. Molars contain a lot of cells, only some of which have the ability to create entire new teeth under the right conditions. In the Reuters story Tsuji said:

"In this case, entire tooth units could be grown because the stem cells were taken from molar teeth of mice -- where they later grew into enamel, dental bones and other parts that comprised a regular tooth unit."

As is often the case in medical research, translating discoveries from mice or rats to humans can be slow going. However, if the scientists are able to find the right cells and work out conditions to grow those cells in the lab, in could mean a future of easier chewing for older people.

2012-08-17T12:13:00.005-07:00

DENTAL PHOBIA

It is a fact that many people are still frightened to go to the dentist but dental phobia is the main cause of deteriorating dental health.

Causes of dental phobia:

Uncomfortable or traumatic past dental experience:

The most common cause of dental phobia; and it is thought to be the most difficult to overcome if it happened in early childhood and contributes to a deep-seated fear of dental intervention.

Lack of communication:

Anxious dental patients need continuous explanation and reassurance. If adequate time is not taken to explain, respond to concerns and answer questions; patients often become disillusioned, confused and unsure about the nature and outcome of treatment. Consequently, anxiety and fear increase to the extent that the patient would not return to the dentist, or visit any other dentist!

Invasion of personal space:

The mouth is a body cavity; it is an intimate personal space, therefore, some individuals feel extremely anxious about a very close “invasion” of such a personal space.

Fear of needles:

Also known as needle phobia. Individuals with needle phobia will not seek dental treatment, as they are frightened of the dental injection (or any form of injection).

“I let my teeth deteriorate, I am ashamed of them, I think I am going to have false teeth”:

Some patients who neglected their dental health for reasons other than fear (demanding work, caring for children, elderly or disabled family member..Etc.) believe that the dentist would be astonished and would remove all their remaining teeth and replace them with dentures. These individuals have a morbid fear of losing their own teeth and having dentures.

Negative or exaggerated remarks from friends or relatives who may not have had a bad experience themselves!

5 TOP TIPS TO OVERCOME THE FEAR OF DENTISTS

First, you have to realise that there are thousands of individuals like yourself; dental phobia is like any other fear; for example fear of heights or closed spaces. You are not on your own.

Second, you also have to realise that there are professionals who can help you overcome your fear. Through good communication, explanation and reassurance, your fears will tend to reduce, and you will be more in control of your anxiety.

Third, dental anxiety management techniques are now well developed and highly successful. Dental practitioners who practice anxiety management would help you overcome your fears through the administration of certain medications.

Forth, Find an understanding and sympathetic dental practitioner. Usually you would sense the mannerism in the practice from the front desk. If the atmosphere is welcoming, relaxed and courteous, and the staff provide you with enough information and respond to your enquiries; the chances are that you are in the right place.

Fifth, let the staff and dentist know of your dental anxiety, and enquire if they practice anxiety management techniques.

Finally, I MYSELF FEARED DENTAL TREATMENTS INSPITE BEING A DENTAL STUDENT BUT I have to assure all of those who are reading this article and suffer from dental phobia, that help is available, it just takes this first step; making contact, and you may be surprised how confident and comfortable you will feel afterwards :)))

Surgical Repair of Post Perforation

2012-01-08T00:34:00.000-08:00

Surgical Repair of Post Perforation

This patient presented without pain but presence of draining sinus tract in the buccal attached tissue over #7. The position of the draining sinus tract directly at the level of the post, normal periodontal probings and evaluation of the radiograph made me suspicious of a post perforation. (note the widened ligament to the level of the post, and completely normal appearance at the periapex)
Options discussed included retreatment or apical surgery. Since the crown is all porcelain, we decided to treat surgically.

Ochsenbein-Luebke surgical flap was selected to prevent recession of marginal gingival, and minimal loss of crestal bone. The periodontal attachment was still in tact following flap reflection despite the loss of buccal bone adjacent to the perforation.

Metal tip of the post was visible without any removal of any buccal bone.

The post was counter-sunk using a high speed handpiece.

Preparation of the root. Note that this was not the apex of the root. This repair was being done on the mid-root surface.

Geristore was selected as the restorative material. Since Geristore is a bonded material, moisture control is important. Astringedent was used for hemostasis and the root was acid etched, primed and bonded.

Geristore placed in the preparation and cured.

Geristore was contoured to the root surface.

Final film. This will be an interesting case to follow. Expect a good result and repair of boney defect. We'll continue to monitor this tooth over time. Endodontic surgery has provided a valuable service to this patient prolonging the life of this tooth, the crown and hopefully regenerating the boney defect

2012-01-08T00:27:00.000-08:00

Removing a Broken Endodontic File

Anyone performing endodontics occasionally has a separated instrument. This case was referred for removal of a separated instrument.

The file is in the MB#2 canal. Since it is in the upper third of the canal, good visualization with a microscope and proper ultrasonic technique will make this file removal possible.

After finding the file, careful ultrasonic instrumention is used to remove dentin around the file - opening up the MB groove. This is done carefully without touching the file itself. We want to expose 2-3 mm of the file before we begin vibrating the file itself.

Too much contact with the file in this early stage can cause a coronal piece of the file to break off, making it more difficult.

Once the coronal coronal 2-3mm of the file has been accessed, the ultrasonic is placed on the most apical part of the file to begin vibrating it. This should loosen the file and vibrate it out. If the file breaks again, then repeat step one.

The file was removed and the MB#2 canal instrumented.

Removal of the separated instrument complete.

Use of an operating microscope is essential in effective removal of a separated instrument.

Regenerative Endodontics - New Frontiers in Endodontics

2012-01-08T00:22:00.000-08:00

Regenerative endodontics is an exciting new concept that seeks to apply the advances in tissue engineering to the regeneration of the pulp-dentin complex. Multiple case reports have shown the ability for previously necrotic, immature teeth to "regenerate" pulp-like tissue allowing for continued development of the tooth.

Traditionally, when an immature tooth became necrotic, root development was arrested and the endodontic goal was to create some kind of calcific barrier against which we could obturate. This is known as Ca(OH)2 apexification. The downside to this treatment was length of treatment time and weak, short, thin roots that remained.

More recently, MTA apexification has become more common. This consists of debridement of the immature root and immediate obturation with MTA. This shortened the treatment time, but the problem of short, thin roots still remained.

Multiple case reports have shown the ability to remove the necrotic tissue and stimulate regeneration of pulpal-like tissue into the canal. This allows for the continued growth of the immature root. The dentinal walls thicken, the length of root increases, periapical lesions heal and the open apex closes.

This is a completely new way of approaching apexification and provides a glimpse at exciting new horizons in endodontics and tissue engineering. I was recently asked by a colleague if I had interest in placing implants. I explained to him that while implants provide a valuable service to replace missing teeth, as an endodontist, I am dedicated to preserving the natural tooth. I am grateful to work with so many great implant surgeons, but I expect there will come a day when real teeth are replaced with real, bioengineered teeth.

Here is an example of pulpal regeneration

This young patient had tooth #8 avulsed. The tooth was stored in milk <1hr>

Tooth #8 was accessed, pulpal tissue removed with minimal filing and copious NaOCl irrigation.

Coronal MTA plug placed w/ cotton & resin access filling.

At 2 months, the periapical lesion is gone and tooth is asymptomatic.

At 4 year recall, the apex has closed, the dentinal walls of the root have thickened and the tooth is asymptomatic and functional.

2011-12-22T05:08:00.000-08:00

Painless Plasma Jets Could Replace Dental Drills

This could mean an end to fear and loathing at the dentist’s office. A new (allegedly) painless blowtorch-like device is being developed that uses a thin beam of plasma could kill oral bacteria in cavities. A plasma is an ionized gas—one in which some of the electrons are stripped away from their atoms.

The plasma kept the dentin, the fibrous bonelike material that makes up most of a tooth under the outer enamel layer, intact, while reducing bacteria 10,000-fold. This means that plasma jets could be used to wipe out the tooth-decaying bacteria in cavities–a procedure that normally requires the use of a painful dental drill to grind away the infected portion of tooth.

The plasma being used is a “cool” plasma with a temperature of just 100 degrees Fahrenheit. When it fires, it charges the oxygen gas around it, which creates reactive molecules that break down and destroy the bacteria’s cell walls, killing them in the process.

But here’s the bad news: If you have a gnawing cavity right now, there’s no point putting off a visit to the dentist. Researchers say it will take three to five years for the new plasma drill to make it to the dentist’s office.

digital impression making

2011-11-06T08:04:00.001-08:00

examination, Diagnosis, and Treatment Planning

Figures 1a and 1b. The patient stated that she was tired of the unaesthetic appearance of her teeth.

Ginny, a 69-year-old female, presented to the office in early 2008. Her chief complaint involved 3 teeth that fractured in the past year, and she was tired of the overall appearance of her teeth (Figures 1a and 1b). She stated that she wants to keep her teeth "…until I die."


Figure 2. The provisionals were removed from teeth Nos. 22 to 27.	Figure 3. The prepared teeth, after placement of retraction cord and application of scanning powder.

Laboratory Processing of the Digital Impression


Figure 4. The laboratory technician uses video images captured by the doctor to accurately and confidently mark the margin.	Figure 5. A virtual model can be simultaneously sent to the crown and bridge laboratory and model manufacturing facility. Dental technicians then use software to design the final restoration.

Figure 6. A ditched and fully articulated stereolithography apparatus model is sent to the crown and bridge laboratory, as well as a solid model like the one pictured above.

Figures 7a and 7b. The model is used for the final steps in the fabrication of the final crown.

Delivery Appointment

Figures 8a and 8b. The final crowns.

The zirconium oxide (Lava) crowns were completed by the dental ceramist and sent back to my office

LASER CAVITY PREPARATION BY WATERLASE

2011-11-05T22:45:00.000-07:00

What is Waterlase™?

The Waterlase™ Hard and Soft tissue laser features a patented Laser-energized water technology which treats cavity preps precisely and safely with little or no discomfort. The water quickly and gently removes enamel, dentin and decay without causing heat or microfractures associated with traditional high-speed drills.

2. What Is HydroKinetic Technology?

The HydroKinetic process is the removal of tissue with YSGG laser-energized water droplets. HydroKinetic energy is produced by combining a spray of atomized water with laser energy. The resulting HydroKinetic energy gently and precisely removes a wide range of human tissue including tooth enamel (the hardest substance in the body), and soft tissue (gum tissue) with no heat and no pain in most cases.

3. Does Waterlase™ Hurt?

Almost never! Heat and vibration are the causes of most of the discomfort associated with the drill. since Hydrokinetic™ cutting does not transmit heat or vibration, many dental procedures can be preformed without anesthesia, in most cases.

Since a shot is not necessary in most cases, you will not have numb or drooping lips after your dental procedure.

The art and science of dentistry have changed, offering a no needle, no drill, no fear procedure for removing decay.

9. Why is Waterlase™ better than the old drill?

The waterlase device that we use instead of the drill eliminates the odors, noise, vibration, micro-cracks and, in most cases, the shot associated with the drill.

Latest advances in dentistry

2011-11-05T22:11:00.000-07:00

Latest advances in dentistry

Some of the latest advances in dentistry are featured in the Daily Mail this week. We might have to wait 2 years or more for some of them to be widely available. But we can look forward to:

Toothpaste that contains microscopic glass particles to help protect teeth from decay and hot/cold sensitivity
Anaesthetic spray to numb your top teeth, long enough for the dentist to do his work. Only works for the upper jaw unfortunately.
A magic wand that can help reduce gum disease and tooth decay – available in a limited way now
Turning cheek cells into new gum tissue
Vibrating gumshield that can speed up tooth straightening but only if you have braces fitted, coming in now
Keyhole dental implant surgery, less invasive and faster healing, in some clinics now, generally more in use abroad than in the UK
A drug to unblock nerve channels, speed up blood flow and quickly reverse the effects of anaesthetic, so hours of numbness after a filling will be avoidable
Tooth coloured fillings which will replace veneers
A new type of mouth guard to correct your bite, reduce stress on your body and improve your muscle strength, apparently in limited use now
Saliva tests to detect a range of diseases from cancer to diabetes

GIANT AMELOBLASTOMA

2011-11-05T22:08:00.001-07:00

GIANT AMELOBLASTOMA (CASE PICTURES )

STEM CELL IMPLANTS IN DENTISTRY

2011-11-05T22:04:00.000-07:00

STEM CELL IMPLANTS IN DENTISTRY

For the first time scientists have regenerated a biological tooth within the oral cavity using stem cell development, suggesting a possible cheaper alternative to dentures or implants for adults who have lost some or all of their teeth.
Scientists demonstrated in an animal model the ability to 'grow' both rodent and human teeth accompanied by ligament and bone regeneration at the site. The US research team directed the body's own stem cells to a growth factor covered three-dimensional scaffold of natural material integrated in surrounding tissue (termed 'cell-homing'). Significant growth and maturation occurred within nine weeks.
The 'cell-homing' method could overcome the need to isolate harvested stem cell lines, or create an environment external to the body (e.g. a Petri dish) where the tooth is grown and then implanted only after it has matured. This could accelerate regulatory, commercial, and clinical processes according to Dr Mao, the lead researcher on the study.
'A key consideration in tooth regeneration is finding a cost-effective approach that can translate into therapies for patients who cannot afford or who aren't good candidates for dental implants' said Dr Mao. 'Cell-homing-based tooth regeneration may provide a tangible pathway toward clinical translation'.
Implants are hampered by long recovery times, of up to 18 months, and are unable to 'remodel' with surrounding jaw bone that undergoes changes throughout a person's life, according to a press release issued by Columbia University Medical Centre where the technique was pioneered.
Dr Ira B Lamster, dean of the College of Dental Medicine said: 'This research provides an example of what is achievable when today's biology is applied to common clinical problems. Dr Mao's research is a look into the future of dental medicine'.
SOON WE WOULD BE ABLE TO GROW TEETH IN ORAL CAVITY REDUCING NEED FOR PROSTHESIS AND NO PROBS ASSOCIATED WITH USE OF PROSTHESIS..:) :)

New Trends in Dentistry Means Less Pain, More Gain

2011-11-05T21:33:00.000-07:00

New Trends in Dentistry Means Less Pain, More Gain

The practice of dentistry has been revolutionized. New instruments and techniques help dentists diagnose and treat their patients faster, less painfully, and with more accuracy.

New cosmetic procedures make smile makeovers a reality for more and more people.

While it may not be your favorite place to go, new trends in dentistry can make your dental visit much more pleasant than ever before.

It is easy to dislike dental x-rays the film holders pinch your gums, gagging is common, and you worry about exposure to too much radiation. A new digital x-ray called a digital panorex films all your teeth at once by traveling around your head. It generates much less radiation than traditional x-rays and produces pictures of your teeth, bone, and surrounding tissue in seconds. Digital images can be enlarged and colorized for a more accurate and complete diagnosis, and can then be emailed to specialists, insurance carriers, etc.
Computer imaging also helps dentists to create life-like images of their patients smiles. Before starting a treatment like porcelain veneers or bonding, a dentist can create a picture that approximates the look of the patients appearance after treatment. This allows the patient and dentist to discuss changes to the treatment for the end result the patient desires, as well as giving the spouse and/or lab an opportunity for their input.
Two new machines help dentists diagnose tooth decay in the early stages, before significant cavities form. DIFOTI (Digital Imaging Fiber-Optic Trans-Illumination) is an extremely intense light that is shined on and through the tooth to show decay between teeth and in hard-to-see areas. It is completely painless and does not use radiation.
DIAGNOdent is a small laser-like wand that looks for cavities based on the softness of a tooth. It is more accurate than the traditional metal explorer used by dentists and dental hygienists. These two new diagnostic aids help dentists find decay sooner and more precisely. Fillings in the early stage of decay require less drilling, less destruction of the tooth, and, in most cases, no pain.
One of the instruments used to produce pain-free dentistry on the incipient early-stage cavities is called Air Abrasion. It is like a mini-sandblaster. It removes decay with a powerful air stream of fine aluminum oxide powder. Air abrasion allows the dentist to remove less of the decayed tooth and to drill and fill cavities in seconds, usually without anesthesia. It is particularly suited to children, many of whom are afraid of needles or the noise of the drill.
Cosmetic dentistry is a growing trend, especially among aging baby boomers seeking a more youthful look. Bleaching restores stained, mottled teeth to a whiter and brighter color. The procedure is relatively painless and quick, short enough to be done during a lunch break or on the way home from work.
Porcelain laminate veneers correct crooked, broken, misshaped, or seriously discolored teeth. They are like fake fingernails, with almost 100% long term success. They are made from a thin layer of porcelain that is colored to look natural in the patients mouth. No more false tooth or dentures look — todays veneers look completely natural. The veneer process is relatively quick. In just two dental visits over one to two weeks, patients can get a brand new smile. You probably have seen hundreds of veneers on Hollywood smiles, and even friends, and never new it!

2011-11-05T21:28:00.001-07:00

15 Dental Advancements You Need to Know

1) Adhesive Dentistry
Contemporary term for dental restorations that involve "bonding" of composite resin or porcelain fillings to natural teeth.

2) Air Abrasion
Removal of tooth structure by blasting a tooth with air and abrasive, a relatively new technology that may avoid the need for anesthetic.

3) Block Injection
Anesthesia of a nerve trunk that covers a large area of the jaw; a mandibular block injection produce numbness of the lower jaw, teeth, half the tongue.

4) Bonding
Adhesive dental restoration technique; a tooth-colored composite resin to repair and/or change the color or shape of a tooth. A procedure to adhere tooth-colored resin to the tooth's surface, creating a bond. The composite resin bonding process is where a resin (similar to an enamel) is bonded to a tooth's surface, but then sculpted into shape, hardened, and polished.

5) Cavitron
Dental tool that uses high frequency ultrasonic waves to clean teeth.

6) Composite Resin
Material composed of plastic with small glass or ceramic particles; usually cured with filtered light or chemical catalyst.

7) Cosmetic Dentistry
Treatments performed to enhance appearance.

8) Cosmetic Contouring
A McMinnville Cosmetic dentist will sculpt and reshape the natural teeth to make them straighter.

9) Dental Implant
A (usually) titanium cylinder surgically placed in the bone of the upper or lower jaw to provide support for a dental restoration or appliance.

10) Intraoral Camera
A small video camera used to view and magnify oral conditions;
images may be printed by your McMinnville cosmetic dentist.

11) Laughing Gas
Nitrous oxide; odorless inhalation agent that produces relative analgesic (sedation); reduces anxiety and creates a state of relaxation.

12) Porcelain Fused to Metal (PFM) Crown
Restoration with metal coping (for strength) covered by porcelain (for appearance).

13) Porcelain Inlay or Onlay
Tooth-colored restoration made of porcelain, cemented or bonded in place.

14) Sealants
Thin resin material bonded in the pits and fissures of back teeth for the prevention of decay. Sealants are used almost exclusively on the biting surfaces of posterior, or back, teeth. These areas are especially vulnerable to cavities because these teeth see the bulk of chewing duty, and their surfaces are so irregular. They are usually covered with pits, fissures, indentations, and small cracks which tend to retain food and conceal plaque deposits.

15) Veneer
Plastic or porcelain facing bonded directly to a tooth to improve its appearance. Porcelain or composite very-thin, special laminates bonded to teeth. Typically, Veneers are used for repairing chipped, cracked, or worn teeth