Friday, October 30, 2009

Oral Contraceptive can Kill you, Dental X ray harms patient, Soaring implants

Oral Contraceptive can Kill you
She was only 30 years old, but she was experiencing the classic symptoms of a stroke. Her speech suddenly became slurred, and her left hand became clumsy while eating.

What triggered her stroke, at such a young age, may have been the birth control pills she was taking. Oral contraceptives nearly double the risk of stroke, according to a review article in MedLink Neurology by three Loyola University Health System neurologists.Nearly 100 million women worldwide use birth control pills. Full Report


Dental X rays harm patient's heart


A new study suggests that low doses of radiation from dental X-rays can trigger heart disease and strokes.

A team, led by Dr. Mark Little at Imperial College London, constructed a mathematical model to find the risks associated with low background levels of radiation.

The team discovered that radiation kills monocytes, a type of white blood cell, in the arterial wall, which results in higher levels of monocyte chemo-attractant protein 1 (MCP-1) and leads to cardiovascular disease. More Here



How to Deal with Hypersensitivity post Tooth Whitening, Finally a TRUE Crown Down method for Endo
All forms of vital tooth whitening are associated with some level
of sensitivity, And Finally a true CROWN DOWN method for achieving excellent results in your Endo work, READ Full Reports

Cost of bone grafting, dental filling to come down in India
The cost of medical treatment involving bone grafting or dental filling could come down in India with the Central Glass and Ceramic Research Institute (CGCRI) Sunday signing an agreement for low-cost application of the technology with private player IFGL Refractories Limited.
In the latest instance of institute-industry tie-up, the CGCRI - a constituent laboratory of India’s largest research and development conglomerate Council of Scientific and Industrial Research (CSIR) - signed an agreement with IFGL for the low-cost application.

The product was likely to be ready for commercial production within nine months, said IFGL director and chief executive Pradeep Bajoria, at the signing ceremony which coincided with the 67th CSIR foundation day. Full Report

How to Double the rate of orthodontic tooth movement ?
AJODO Oct 2009
One method used to accelerate orthodontic tooth movement is the corticotomy-facilitated (CF) technique. The purposes of this study were to (1) identify the effect of the CF technique on orthodontic tooth movement compared with the standard technique, and (2) explore the histologic basis of the difference between the 2 techniques.
The first premolar on the CF side moved significantly more rapidly (P <0.05). Histologic findings showed more active and extensive bone remodeling on both the compressive and tension sides in the CF group.
Conclusions The CF technique doubled the rate of orthodontic tooth movement. Histologically, the more active and extensive bone remodeling in the CF group suggested that the acceleration of tooth movement associated with corticotomy is due to increased bone turnover and based on a regional acceleratory phenomenon (RAP).

Gutka Sales increase in UK
A radio documentary tonight will reveal how women in the UK's South-Asian community are at a high risk of developing mouth cancer as a result of using gutka – or chewing tobacco.

Gutka is currently more popular than ever before in the UK.

According to the National Cancer Intelligence Network, which has revealed the first national report into cancer rates within ethnic groups, Asian women are 80% more at risk of developing mouth cancer than white women. More

Dental Implant market to double by 2015

- Market sizing information to 2015 for the global dental implants market
- Information and comparison of key countries such as US, Brazil, Japan, China, UK, Canada, Italy, India, Germany, France, Australia and Spain
- Key drivers and challenges to the growth of the global dental implants market
- Disease incidences and epiemiological data

All this info is in a report that can be purchased Click HERE TO BUY

Indian Dental Students catch up with the World Technology
With our educational content on iTunes, we can help thousands of students in the 128 odd Indian dental colleges in India and learn about the A toZ of advances in the field," said Sameer Bhat, country head, Nobel Biocare. This includes step by step demonstrations through audio, video and animations on Nobel's science-based treatment expertise, implant restorations and CAD/CAM dentistry concepts.

Anyone who knows the market knows that this focus on implantology can help create a lucrative niche in the coming years. "Today, of the 80000 dentists in India only 1000 are proficient in performing implants," said Bhat. He added, "Indians are increasingly becoming aware of dental hygiene. A staggering 1.5 million dental bridge operations are done every year. They are highly unreliable, and do damage to healthy teeth. On the other hand, an implant has a durability of over 10 years and is completely computerised." Due to this obvious advantage implants are costlier at around 20,000-40,000 per implant but are still gaining popularity in India. Therefore, studying them can make a world of difference for dentistry students. MORE HERE

Saturday, October 24, 2009

Protaper myth bused, Lady in USA dies of perio infection

Severe perio infection kills a women in USA
A Michigan woman with severe periodontitis died this month because the state eliminated adult dental Medicaid benefits, according to the director of a chain of clinics that attempted to arrange her treatment.

When a physician detected her blood infection in early July, he recommended that all her teeth be extracted. The dental clinic scheduled this treatment at a local hospital, but the hospital postponed the procedure because she had mild pneumonia that prevented the use of general anesthesia.

By the time she recovered from the pneumonia, the state had eliminated dental services and the hospital would not put her under general anesthesia because the cost -- which it estimated at $4,500 to $6,000 -- would not be reimbursed by the state, Dr. Veryser said.

"Our hospital coordinator tried to come up with Medicaid reasons to force the hand of Medicaid," but the Medicaid office wouldn't budge, he said. More


Protaper Myth busted
For long profile and similar tapered rotary systems have been propagating that apical sizes can be finished with 15-25 size. This study clearly demonstrates that unless you clean apex with at least a size 45, you may not remove all infected debris leading to much higher risk of failure.
According to this paper published in oct 2009 issue of IEJ, it concludes:

In 92% and 96% of teeth the difference between the maximum and the minimum diameter of
all foramina was less than or equal to 0.20 and 0.25 mm, respectively. Therefore, four to five instrument sizes larger than the first binding file would have been necessary to shape the minor apical foramen of more than 95% of the teeth included in this study to make them round.
The unpredictable nature of the position of the apical constriction with respect to the radiographic apex further strengthens the need of using electronic foramen locators rather than relying on radiographs for canal length determination. Download full paper


White wine could result in dental erosion
Consuming white wine on a frequent basis could be more harmful for dental health than red wine, finds a German study.
The findings of the study reported in the journal Nutrition Research are expected to counter the beliefs of all those who think that red wine causes more harm.

The study suggests that white wines, such as chardonnay and pinot grigio, are more likely to cause damage to the protective layer of the teeth called tooth enamel than red wine like rioja and merlot.



Prolonged Thumb Sucking In Infants May Lead To Speech Impediments

Using a pacifier for too long may be detrimental to your child's speech. Research published in the open access journal BMC Pediatrics suggests that the use of bottles, pacifiers and other sucking behaviors apart from breast-feeding may increase the risk of subsequent speech disorders in young children.
"These results suggest extended use of sucking outside of breast-feeding may have detrimental effects on speech development in young children," according to Barbosa. This finding is particularly relevant, as use of bottles and pacifiers has increased dramatically over the last few decades. More

Which Retainer is better ? Glass fibre or Multistrand
EJO oct 2009
The objective of this study was to compare glass fibre reinforced (GFR) with multistranded bonded orthodontic retainers in terms of success rate and periodontal implications.

GFR retainers showed unacceptably high failure rates in comparison with multistranded retainers (51 versus 12 per cent). The most significant periodontal conditions were found in patients with GFR retainers with no significant differences between the GFR500 and the GFR1000 group for any parameter at any time point. Subjects without retainers showed significantly lower levels of gingival inflammation and plaque accumulation when compared with patients in any retainer group.

Multistranded retainers should remain the gold standard for orthodontic retention, although periodontal complications are common. The use of GFR retainers should be discouraged in daily practice.

Sugary medicines harm kids teeth
Nigel Carter, chief executive of the British Dental Health Foundation (BDHF) is alerting health professionals and the public on the decaying effects following a report by specialists at a Dublin hospital.
Doctors and healthcare professionals should prescribe sugar-free liquid medicines or medicines in tablet form if possible. If the medicine is only available in a sugar-containing liquid formulation, advice should be given to the child's parents and carers.

Dr Carter added weight to this argument, saying: ‘Patients and practitioners need to have a greater awareness of the risks of sugar containing medications particularly when these are taken regularly for chronic conditions and to look for sugar-free alternatives.' More HERE

Risk factors for the development of Enamel defects
Oral Disease, oct 2009
Subjects and methods: Children between 4 and 5 years of age (n = 102) were classified into: Group 1) 52 low birth weight (<2500 g); Group 2) 50 normal birth weight (≥2500 g). Medical history, prenatal and neonatal variables were collected. Enamel defects were evaluated with the modified Developmental Defects of Enamel Index.

Results: The prevalence of hypoplasia and average number of affected teeth were significantly higher in group 1 than in group 2 (59.6%vs 16% and 1.6 vs 0.3 respectively). Low gestational age was linked to a higher prevalence of hypoplastic (P = 0.027) and combined defects (P = 0.001). Children with neonatal risk factors (low Apgar scores, parenteral nutrition, orotracheal intubation, mechanical ventilation and acidosis) developed defects more frequently (P < 0.05). Defects were symmetrically distributed in children who were not intubated; in those who required intubation they concentrated on the left maxillary teeth (P < 0.05). Smoking during pregnancy, young maternal age and multiple birth were significantly associated to developmental defects.

Conclusions: The prevalence of enamel defects in primary dentition is significantly influenced by birth weight, gestational age and several systemic factors. Orotracheal intubation probably plays an important role as a result of laryngoscope trauma on the maxilla.


Daily chewing gum exercise for stabilizing the vertical occlusion
Journal of Oral Rehabilitation, 10/23/09

We investigated the effects of a chewing gum exercise program on occlusal conditions and evaluated compliance of subjects. Thirty-five healthy adult volunteers (26 males and nine females) were asked to chew gum for 10–15 min before or after three meals daily for four weeks. Occlusal conditions were recorded as occlusal parameters, such as occlusal contact area, occlusal contact force, and pressure using dental prescale films. These parameters were evaluated by an Occluzer before the exercise period commenced, after four weeks of exercise, and then one month after the end of the exercise period. These parameters were statistically compared using one-way ANOVA. We found that: (i) after four weeks of exercise, anterior and posterior occlusal contact areas and forces were significantly (P < 0·05) increased and the increments were significantly (P < 0·05) higher in the anterior occlusal contact area and force than in the posterior occlusal contact area and force, (ii) the anteroposterior ratio of occlusal contact area and force increased, but not markedly, (iii) increased parameters had significantly (P < 0·05) decreased within one month after the end of the four-week exercise period, (iv) most participants did not complain for discomfort or stress during the exercise. The chewing gum exercise program could increase occlusal contact area and force and also move the anteroposterior occlusal balance forward. Patient compliance with the exercise is likely high enough to keep them exercising.

Is your Cellphone provider over billing you
Cell phone carriers are notorious for slapping consumers with fees and unexpected charges. But if you look carefully at what you're paying for and figure out what you need, you can keep your monthly bill down.  MORE

Banding and Bonding videos
For those of you who want to see videos of banding and bonding you can view them here and make your clinical ortho more perfect, click on links below to download and view videos
Banding video
Bonding video
you will need to download both files and and view them.

Friday, October 16, 2009

Indian orthodontist Dead in USA, Cardiologist convicted in USA,, Sperm count & Teeth

Indian Orthodontist dies chasing his American Dream


Dr Girish Herekar, Indian orthodontist from Maharashtra who immigrated to USA few years ago died recently because of heart attack, he was only 40. He is survived by his first wife (Manisha Herekar) and son who reside in Belgaum.

Dr Hirekar first did his MSc in Biomaterials and then passed the Minnesota dental board. He served shortly in State service in Florida and about 2 year ago setup a practice in California, See HERE

Indo-American doctor convicted for $16 Million tax evasion
Indian American doctor convicted for $16 mn tax evasion Oct 9 (IANS) A federal jury has convicted an Indian American cardiologist for evading more than $16 million dollars in income taxes and filing false tax returns.
According to prosecution evidence presented at the six day trial, Pradeep Srivastava, 50, of Potomac, Maryland, conducted a huge volume of trading in stocks and stock options.MORE HERE

Working Length determination with Paper Point
Proper WL determination is vital for successful endo, it prevents flare-ups, and in the
long term it allows for successful treatment outcome by contributing to prevention of periapical foreign body reactions, sealing of root canal apices,and microbial control. Accepted methods are Electronic Foramen locator and radiographs. This paper describes the use of paper point technique successfully. CLICK HERE TO READ FULL PAPER
To see training opportunities in Endodontics CLICK HERE

Dental students, teachers killed in car-bus mishap
Express News Service
First Published : 14 Oct 2009
SALEM: Two final-year BDS students and a dentist were killed on the spot and another dentist was seriously injured when the car in which they were travelling collided with a TNSTC bus here on Tuesday evening.

According to preliminary reports, Arathi Srikumar, 21, Sabari, 25, and Moshin (all from Kerala), and Fathima Suliya, 22, from Malaysia were returning from the Vinayaka Missions Dental College at Seeragapadi to their rooms when the accident occurred.

Arathi and Fathima were final year BDS students at the college while Sabari and Moshin were working as teaching staff in the same institution’s dental college hospital. At 4.30 pm , the four were on their way back from the hospital in a Maruti Swift car. Arathi and Fathima occupied the rear seat while Moshin took the left front seat. Sabari drove the vehicle. Nearing the Dream Land theme park on Salem- Coimbatore highway at Policekaran Thottam, a TNSTC bus coming from the opposite direction hit the car.

The car was mangled and the occupants were trapped inside.

Arathi, Sabari and Fathima died on the spot while Moshin, who was seriously injured, was admitted to the Vinayaka Missions Hospital. Moshin’s age could not be ascertained. The bodies were sent to Salem GH.

Salem SP N M Maylvahanam visited the hospital and made inquiries. Driver of the bus is absconding.

Dental assistant gets five years for fondling patient in USA

A dental assistant who sexually assaulted a woman during oral surgery will spend five years in prison, a judge ruled Wednesday in Frederick County Circuit Court.

On April 22, the 23-year-old patient was under anesthesia to have wisdom teeth removed. She awoke to find Danilo Carabio Banados kissing her mouth and fondling her under her clothes, authorities said.

"You violated (her) trust," Judge G. Edward Dwyer Jr. said, explaining his decision to go beyond the state sentencing guidelines of probation to one year.

"Mr. Banados, you came in here at most with a minor record," Dwyer said. "Now you have two felonies that will follow you for life." Full report with Pic

The Effects of Occlusal Loading on the Margins of Cervical Restorations
The Journal of the American Dental Association , 10/05/09
The clinician cannot underestimate the effects of occlusal loading when restoring teeth with cervical wedge–shaped lesions. If occlusal loading is the main factor contributing to lesion formation, the clinician should identify and treat it before placing the restoration or otherwise run the risk that the restorative treatment will fail because of marginal gap formation. MORE HERE

Survival and failure rates of orthodontic microimplants: a systematic review
Clinical Oral Implants Research, 10/06/09

Based on the available evidence in the literature, palatal implants and miniplates showed comparable survival rates of >=90% over a period of at least 12 weeks, and yielded superior survival than miniscrews. Palatal implants and miniplates for temporary anchorage provide reliable absolute orthodontic anchorage. If the intended orthodontic treatment would require multiple miniscrew placement to provide adequate anchorage, the reliability of such systems is questionable. For patients who are undergoing extensive orthodontic treatment, force vectors may need to be varied or the roots of the teeth to be moved may need to slide past the anchors.

Removal of Dental Implant from Maxillary Sinus
Int J Oral Maxillofac Implants 2009;24:947–951
The efficacy of transantral endoscopy for the removal of a foreign material from the maxillary sinus has been reported previously. Endoscopy has also been used for removal of dental implants after their displacement into the maxillary sinus either during implant placement or subsequently, during implant integration or loading. This case report describes the removal of a dental implant from the maxillary sinus using a modified transantral endoscopic approach combined with simultaneous grafting of the sinus cavity.  More HERE

Hawley retainers full- or part-time? A randomized clinical trial
European Journal of Orthodontics , 10/12/09

The aim of this trial was to compare two different orthodontic retention regimens. There were no statistically significant differences between the two retention regimens at T2 for labial segment irregularity or crowding. Since both retention regimens were equally effective during the 1 year retention period, it would seem clinically acceptable to ask patients to wear their retainers at night only. MORE HERE

No high-level evidence to support use of ultrasonic instrumentation for root canal treatment
Evidence- Based Dentistry, 10/14/09

This review illustrates the current lack of published or ongoing RCT, and the lack of availability of high–level evidence dealing with clinically relevant outcomes, for the effectiveness of ultrasonic instrumentation used alone or as an adjunct to hand instrumentation for orthograde root canal treatment. Future RCT might focus more closely on evaluating the effectiveness of combinations of these interventions with an emphasis not only on clinically relevant but also patient–centred outcomes. MORE

Connection between toothbrushing and Sperm count ?

Brushing your teeth twice a day can boost your sperm count.
That's according to the British Dental Health Foundation (BDHF) who have advised reaching for a toothbrush after research found that infertile men are far more likely to suffer from gum disease.  MORE

Tuesday, October 13, 2009

Dental Asst Shot in USA, what is new in Implants and periodontics

Dental Assistant Shot in USA


"He was phenomenal. He could come in and light up a room in a matter of seconds," she explained. "Our patients absolutely loved him.  They trusted him.  He made them feel comfortable."

But that smile is now a memory after Holley was gunned down early Saturday morning. Sarasota police said he was driving on Cocoanut Avenue and 21st Street.

William witnessed someone being mugged by a group of men, and the group quickly turned on William firing several shots into his car, detectives said. He died just few blocks away. FULL Story


Revolutionary Implant technology may achieve Implant Osseointegration in 3 weeks
APLIQUIQ  is the fast and effective chairside conditioning system used to produce the superhydrophilic INICELL surface. The sterile applicator contains one implant and one healing cap in a dry state, and the liquid conditioning agent in a sealed cartridge. The conditioning agent, when released, hydroxylates the sandblasted/thermal acid-etched implant surface, increasing surface energy and creating the superhydrophilic properties that lead to increased blood contact and homogenous protein adsorption.INICELL surface implants may be loaded in 3 weeks in most cases. MORE HERE

DIY Dentistry in Australia
POOR Australians are resorting to do-it-yourself dentistry, including filing their own teeth and attempting their own extractions, because of lengthy queues for public dental services.

Graham Long, pastor and chief executive of the Wayside Chapel in Sydney, says he sees ``black, ulcerated mouths'' every day in his job.

``It's a dentist's nightmare,'' he says. ``I just don't know how they live with it. I've seen people do dentistry on themselves. I've seen people pull out their own teeth. I've seen people file the ends of their teeth because they've got a jagged tooth slicing up the side of the mouth.''

Most dental work in Australia is paid for privately, but public services exist for concession card holders and other groups deemed needy by local health authorities.
FULL REPORT

How hard is the skin of your TEETH ?
It's been a mystery: how can our teeth withstand such an enormous amount of pressure, over many years, when tooth enamel is only about as strong as glass? A new study by Prof. Herzl Chai of Tel Aviv University's School of Mechanical Engineering and his colleagues at the National Institute of Standards and Technology and George Washington University gives the answer.
"Teeth are made from an extremely sophisticated composite material which reacts in an extraordinary way under pressure," says Prof. Chai. "Teeth exhibit graded mechanical properties and a cathedral-like geometry, and over time they develop a network of micro-cracks which help diffuse stress. This, and the tooth's built-in ability to heal the micro-cracks over time, prevents it from fracturing into large pieces when we eat hard food, like nuts." MORE HERE



Periodontal Therapy Improves Gastric Helicobacter pylori Eradication
Journal of Dental Research, Vol. 88, No. 10, 946-950 (2009)

The oral cavity has been proposed as a reservoir for H. pylori that could be responsible for the refractoriness of gastric infection to triple therapy (antibiotics, antimicrobials, and proton pump inhibitors). The aim of this study was to evaluate the efficiency of combined periodontal and triple therapy vs. triple therapy alone, in gastric H. pylori eradication in persons with H. pylori in the subgingival biofilm. Individuals positive for H. pylori in their gastric and oral samples, as determined by nested PCR, were treated either with periodontal and triple therapy or with triple therapy alone. Our results indicate that 77.3% of those treated with the combined therapy exhibited successful eradication of gastric H. pylori, compared with 47.6% who underwent only triple therapy. Analysis of these data suggests that periodontal treatment in combination with systemic therapy could be a promising approach to increasing the therapy’s efficacy and decreasing the risk of infection recurrence.

Gujarat government to introduce laser education in dentistry
Society For Oral Laser Application (Sola) affiliated to International Society for Oral Laser Applications in Vienna is working on a project on laser education in Government Dental College in state capital, its secretary Mohan Vakade said today.
The move comes after keen interest shown by Gujarat health minister Jjaynarayan Vyas in laser education who emphasised on the need of it after releasing a book on clinical guide for Oral Laser Applications authored by Vakade, Anil Shah and others at the 3rd national conference on oral laser applications held in Ahmedabad earlier this month. MORE HERE

University-Level Dental Sleep Medicine Program Opens at Tufts
Tufts University, Boston, has developed the first university-level Dental Sleep Medicine Program in the United States. Starting in fall 2009, the Craniofacial Pain, Headache and Sleep Center, part of the Department of General Dentistry at Tufts Dental School, will offer the new Dental Sleep Medicine (DSM) course to postgraduate dental students.

The course will provide classroom and clinical instruction to postgraduate students. Postgraduate students and residents can participate in patient assessment, interpretation of polysomnograms (an overnight lab test used in to diagnose sleep disorders), and the use of ambulatory sleep study monitors when titrating oral appliances. The students can also be trained in selecting, fitting, and adjusting the oral appliances used to treat obstructive sleep apnea.
The American Academy of Dental Sleep Medicine (AADSM) applauded Tufts University School of Dental Medicine for its development of the flagship Dental Sleep Medicine Program.

Periodontitis as a risk factor for cerebrovascular accident: a case–control study in the Indian population
Journal of Periodontal Research Sept 2009
This case–control study consisted of 200 subjects (100 cases and 100 controls) who were 33–68 years of age. Cases were examined within 5 d after their first acute ischemic attack. Clinical parameters recorded included plaque index, gingival index, probing pocket depth and clinical attachment loss. The medical questionnaire collected information on family history of stroke, dietary history, history of smoking and history of alcohol consumption. Cases were additionally scrutinized for diabetes, hypertension and total serum cholesterol level. The education level of patients was also considered.

Results: The mean plaque index, gingival index, probing pocket depth and clinical attachment loss values of subjects with cerebrovascular accident were significantly higher when compared with those of the control group (p < 0.05). In fully adjusted logistic regression analysis, a probing pocket depth of > 4.5 mm was found to be the most significant factor for stroke (odds ratio = 8.5; confidence interval = 1.1–68.2) followed by hypertension (odds ratio = 7.6; confidence interval = 3.3–17.1) and smoking (odds ratio = 3.1; confidence interval = 1.3–7.4).
Conclusion: The data from this study support the proposed link between periodontitis and cerebrovascular accident in the Indian population. However, further studies are necessary to verify and quantify the role of oral infections and genetic factors in the process of atherosclerosis.

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