FAQ – Dr Crawley Dental

How safe are dental X-rays?

All radiation sources carry risk, but modern dental X-rays use very low doses. Digital sensors, tight beam collimation, faster films/sensors and precise holders minimise exposure and repeat images. Lead aprons and thyroid collars may be used as needed.

Equipment is also regularly calibrated for accuracy and safety as required by regulation. For most patients, the benefit of accurate diagnosis far outweighs the small risk.

What are dental sealants, who should get them, and how long do they last?

Sealants are a thin, protective coating painted into the grooves of back teeth to help prevent decay. They bond quickly and create a shield over enamel.

Who: Typically applied to children’s new permanent molars/premolars (ages ~6–14). Adults without decay or fillings in those teeth can also benefit.
Longevity: They can last for years but should be checked at routine visits for wear or chipping.

What is drill-less dentistry (air abrasion) and where is it used?

Air abrasion uses a fine stream of particles (e.g., aluminium oxide) to gently remove small areas of decay or stains and to prepare teeth for bonding or sealants. It works like a mini sandblaster, and particles are suctioned away.

It’s offered in select cases and can reduce vibration and noise compared with a traditional drill.

What’s the latest on the safety of amalgam (silver) fillings?

Large health bodies (e.g., ADA/FDA and international public-health agencies) consider amalgam safe and durable for most patients. Mercury is bound within a stable alloy (silver, copper, tin, zinc) used for over 100 years.

Concerns about disease links haven’t been supported by high-quality evidence. If you’re considering replacing amalgam fillings, the decision should be based on clinical need and a discussion with your dentist.

How do whitening toothpastes work—and how effective are they?

All toothpastes remove surface stains via mild abrasives; some add polishing or chemical agents for extra lift. They don’t bleach teeth. For deeper colour change, over-the-counter or professional products with peroxide are needed.

Whitening toothpastes may lighten by ~one shade; in-office whitening can achieve 3–8 shades, depending on your enamel and stains.

I want to change the shape of my teeth—what are my options?

Bonding: Tooth-coloured resin added and shaped; great for chips, edges, small gaps.
Veneers: Thin porcelain or composite shells to refine colour, shape and symmetry.
Crowns: Full-coverage caps to strengthen and reshape compromised teeth.
Recontouring: Minor enamel reshaping to smooth edges or adjust length.

We’ll recommend options based on your goals, enamel condition and bite.

I’m nervous about the dentist—what can help?

You’re not alone. Start by telling us about your concerns—we take them seriously and tailor your visit. Options include topical and local anaesthesia, gentle techniques, air abrasion where suitable, and calming strategies (breathing, guided imagery, breaks).

Together we’ll build a plan at your pace so you feel in control and comfortable.

There are so many toothpastes—how do I choose?

Always: Choose fluoride. Use a smear-size amount for kids under 6 (they tend to swallow).
Look for seals: Professional approval marks indicate safety/effectiveness testing.
Match your need: Sensitivity, tartar control, gum care, whitening, etc. Ask us what suits your mouth right now.

Flavour and feel are personal—switch if something irritates your mouth, and let us know.