Orantown Dental Centre

Orantown Dental Centre
Orantown Centre
Co. Galway
Tel: (091) 795195
Email: orantowndental@eircom.net

Dr Dorcas Whitney BDS NUI
Dr. Aideen Buckley BDS NUI
Ms. Síle Melia Hygienist

Opening hours
Monday: 9.00am – 6.00pm
Tuesday to Friday: 9.00am – 5.00pm

Private, PRSI and Medical card patients

Emergencies welcome




News - February 2019

Study of medieval plaque shows how oral microbiomes have changed

dfdfdRecent studies have shown that dental calculus from archaeological samples could be a rich source for understanding the dental health of our ancestors. A new study of the calculus of human remains buried in Denmark has shed light on the oral microbiomes of groups of medieval people in the area.
A University of Copenhagen team sampled calculus from the remains of 21 humans buried circa 1100-1450 CE in the medieval cemetery of the village Tjærby. Some 3,671 proteins from 220 different protein groups were identified from the calculus, with approximately 85-95% produced by bacteria from the oral microbiome.
Although all of the samples showed traces of bacteria associated with periodontal disease and dental caries, the team was able to divide the samples into two groups: one that was more susceptible to oral disease; and, one that appeared more resistant. In the latter group, there was just one case of periodontitis, whereas seven members of the former group displayed signs of severe tooth decay. Since the two groups more than likely had similar diets and oral health habits, the difference is likely to be attributed to differences in proteins.
The calculus samples that were used were found to be far more heterogeneous than samples gathered from modern Danish individuals. The study’s authors argued that the increased diversity of modern diets, combined with environmental and lifestyle factors and other issues were likely to be the main causes of the variety in modern oral microbiomes.
The study was published in Nature Communications.

From: www.dental-tribune.com


Lymph node ratio may predict graveness of oral cavity cancer

dfdfdOral cavity cancer is often discovered late, and patients with this advanced form of disease have a five-year survival rate of just 40%. Researchers from the University of Colorado Denver (CU Denver) found that the lymph node ratio (LNR) provides an indication for the seriousness of this cancer.
Researchers collected information from patients treated at UCHealth University of Colorado Hospital for locally advanced oral cavity cancer. Ding Ding, first author of the study, said: “We wanted to know if features of these patients, their tumours or their treatment could predict survival”.
One factor used to predict cancer risk is the extent of lymph node involvement: “The current nodal staging system for oral cavity cancer is based on the size, number, laterality and spread of the tumour outside the wall of the involved lymph nodes,” Ding explained. “In other types of cancers, such as breast cancer, researchers have been exploring another measure of lymph node involvement, namely whether the ratio of surgically removed lymph nodes that are positive for cancer can predict treatment outcomes”.
Ding’s study participants had a median of 29 lymph nodes removed during surgery. About 9% of these tested positive for cancer. Some patients had an LNR above 10%, while others had an especially low or even zero LNR. Patients with an LNR greater than 10% had an over two times greater risk of cancer recurrence and of death than patients with an LNR below 10%.
The study was published online in JAMA Otolaryngology – Head & Neck Surgery.

From: www.dental-tribune.com


Cranberries and blueberries – why certain fruit extracts could provide the key to fighting tooth decay

dfdfdA handful of dark-coloured berries may lower the risk of tooth decay, new research shows.
Scientists have found that nutrients in cranberries and blueberries can be highly effective in protecting the teeth against a strand of bacteria responsible for accelerating tooth decay.
The study supports previous research by suggesting these natural compounds, known as polyphenols, are good for oral health by preventing ‘bad bacteria’ from sticking to teeth and gums. This could help reduce tooth decay, plaque and gum disease.
Chief Executive of the Oral Health Foundation, Dr Nigel Carter, believes polyphenols could eventually lead to new oral care products. Dr Carter says: “The nutrients and fibre in fruit are vital for our health and wellbeing. They help protect us against heart disease and cancer, as well as a range of other diseases. Cranberries seem especially good for our oral health, as their polyphenols stick around in our saliva and will continue to help our mouth, even after we’ve swallowed them.
“What is especially exciting is that these natural extracts are completely sugar-free. This means they can be added to oral care products in several ways. They can dissolve in water so can be used to create healthy drinks, as well as to reformulate unhealthy drinks packed full of sugar.
“They also have wider applications for tooth decay prevention and control. Mouthwash could benefit from this ingredient, as could toothpastes.”
Dark-coloured berries are among the best dietary source of antioxidants. However, they often also contain high amounts of natural sugar.

From: www.dentalhealth.com.com