Sucking on a thumb is a harmless and normal habit that most babies and toddlers indulge in during their early years. Usually the habit will peter out by the age of six — but some toddlers persist with thumb-sucking beyond this time.
This is not advisable as the sucking motion can have adverse effects on the development of their teeth and jaws and cause problems such as:
- An improper bite
- Protruding front teeth
- Crowded or crooked teeth
If your child’s thumb-sucking is causing concern you should schedule an appointment with your child-friendly dentist who will evaluate the situation and offer solutions on how to break the habit. Read more at https://yourdentalhealthresource.com/your-childs-thumb-sucking-may-be-causing-crooked-teeth/.

I’m Matthew Houlton, principal dentist and practice owner of Manor House Dental Practice.
Qualified from Sheffield dental hospital in 1993.
Post graduate training with Paul Tipton (Specialist Prosthodontist) from 2005-2007.
Diploma for Membership of the Faculty of General Dental Practice (UK) 2007.
Special interest in Orthodontics.
Yorkshire Deanary Fixed Appliance Training Scheme 2002-2004.
I have worked at York Hospital’s orthodontic department one session a week since 2009.
Member of the British Society of Occlusal Studies (the study of temporomandibular disorder).
I have two children, who keep me busy when I am not at the practice. I take a keen interest in and teach Aikido, a martial art, to keep a healthy mind and body.
