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Relevance of bisphosphonate therapy in osteoporosis and cancer – no cause for alarm in dentistry

From Volume 43, Issue 3, April 2016 | Pages 235-242

Authors

Amelia Elizabeth Moore

BSc, MSc, PhD

Research Fellow in Osteoporosis, King's College London

Articles by Amelia Elizabeth Moore

Tara Renton

BDS, MDSc, PhD

Professor of Oral Surgery, King's College London; Honorary Consultant in Oral Surgery, King's College Hospital NHS Foundation Trust and Guy's and St Thomas' NHS Foundation Trust, London

Articles by Tara Renton

Talli Taylor

BDS, MFDS RCS(Eng), MSurgDent RCS(Eng)

Specialty Doctor in Oral Surgery, King's College Hospital, London

Articles by Talli Taylor

Shina Popat

MSurg Dent RCS(Eng), MFDS RCS(Eng) BDS(Lon)

Specialist in Oral Surgery, King's College Hospital

Articles by Shina Popat

Mukundrai Kris Jasani

MBChB, FRCP

Research Physician in Osteoporosis, Guy's and St Thomas' NHS Trust, Hon Consultant in Metabolic Bone Diseases, Guy's and St Thomas' Foundation Trust, London, UK

Articles by Mukundrai Kris Jasani

Abstract

This report provides important background information on osteoporosis (OP) and bone complications of cancer for the dental team, and discusses why bisphosphonate (BP) therapy is vital for patients with the two conditions. It also addresses several questions, including in particular: ‘Is withholding BP therapy the best way to prevent osteonecrosis of the jaw (ONJ) occurrence?’ Also, ‘Of the two, which is more important: ONJ or OP fracture prevention?’

CPD/Clinical Relevance: BP therapy offers OP patients the promise of a fracture-free life and the prevention of fracture-related pain, disability, loss of qualify of life (QOL) and the shortening of life. Without BP therapy, the lifetime risk of fracture occurrence in OP patients is as high as 1 in 2 women and 1 in 5 men; whilst using it, the relative risk of ONJ occurrence is as low as between 1 in 10, 000 and 1 in 100, 000. To cancer patients with bone complications, it offers the much needed pain relief and improvement in QOL. In cancer patients, the risk of ONJ is almost 100 times higher but, despite that, oncologists advocate BP therapy for virtually all the patients. Therefore, when prescribed, BP therapy merits the whole-hearted support of the dental team.

Article

Thinning of bones is commonly referred to as osteopenia. It is a manifestation of bone physiology permanently deranged by the menopause. Conventionally, once the breakage of bone occurs, the condition is referred to as osteoporosis (OP). OP fractures occur in 1 in 2 women and 1 in 5 men over the age of 50.1 Bone fractures lead to disability and pain. They also cause significant morbidity and mortality and cost the NHS £2.3 billion annually. This does not take into account the enormous costs in terms of reduction in QOL, and loss of independence (particularly after a hip fracture).

First line treatment consists of the oral BPs. They significantly reduce the risk of fracture occurring at all the three common sites namely, the forearm, spine and hip, and offer the promise of a fracture-free life.

However, BP therapy is associated with the risk of ONJ and this continues to remain a source of great concern to the dental team.

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