Metal braces, ceramic braces or clear aligners: what is the difference?

When deciding on orthodontic treatment, many people weigh three familiar options: metal braces, ceramic braces and clear aligners. All three move teeth on the same principle, a light and steady force on the teeth. The differences are in how they look, how you clean around them, how often you are seen, and which cases each suits. This article explains each one before you talk to your orthodontist.

Metal braces

The longest-established and most widely used appliance. Metal alloy brackets are bonded to the outer surface of the teeth and joined by an archwire, held with small elastics or by a clip (self-ligating brackets). At Asahii Dental Clinic both metal and ceramic braces are available as Damon self-ligating systems.

• Strengths: robust, rarely break, excellent control in complex cases, usually the lowest cost.
• Limitations: clearly visible when you smile and talk; rub the cheeks and lips in the first weeks; cleaning takes more care because food collects around the brackets.

Ceramic braces

Ceramic braces work like metal ones but the brackets are ceramic or a clear material close to tooth colour, so they are less noticeable up close.

• Strengths: more discreet than metal, still suitable for many difficult cases.
• Limitations: brackets are slightly bulkier and can chip more easily; the elastic ties can stain with dark food and drink; higher cost than metal.

Clear aligners

Clear aligners (Invisalign, for example) are a series of thin plastic trays designed from a digital plan. Each tray moves the teeth a small step; you change trays on a schedule, usually every one to two weeks. Asahii treats with Invisalign, including Invisalign First for children; Dr. Chu Thuy Trinh is Invisalign certified (2023) and completed the Invisalign Enhanced Course in 2025.

• Strengths: almost invisible; removed for eating and brushing so hygiene is easier; less rubbing; appointments can be further apart.
• Limitations: must be worn enough hours a day (usually over 20) to work at all; easy to forget or lose; some complex movements need attachments on the teeth or additional appliances; usually the highest cost.

Quick comparison

• Appearance: aligners are the most discreet, then ceramic, then metal.
• Hygiene: aligners are easiest because they come out; both types of braces need careful brushing around brackets and interdental brushes.
• Eating: with braces, avoid hard, chewy and sticky food; with aligners, simply remove them to eat and brush before putting them back.
• Appointments: braces usually every four to six weeks; aligners can be less frequent, but need discipline at home.
• Suitability: braces handle the widest range of problems; aligners suit many mild to moderate cases and the range keeps growing, but some cases are still better treated with braces.
• Duration: depends on your teeth and your cooperation far more than on the appliance. See How long do braces take?.

How the orthodontist chooses

It is not only a matter of preference. Your orthodontist considers:

• The type and severity of the problem: crowding, protrusion, underbite, open bite, deep bite, and whether extractions or expansion are needed.
• Age and jaw development: a growing child may need a functional appliance (such as a Twin Block or an expander, part of the growth-guidance orthodontics Asahii offers for children) before braces or aligners.
• The health of teeth and gums: decay and gum disease must be treated first.
• Habits and cooperation: someone who forgets or will not wear trays for enough hours may do better with braces.
• Your appearance needs, work, and budget.

So the same wish, "I want clear aligners", may be agreed straight away for one person, while another is advised to use braces, or to combine both at different stages. At Asahii the doctor explains your situation in detail, sets the options side by side and gives a clear price for each before you decide; nothing starts until you have confirmed the plan.

When to see us straight away

Whatever the appliance, contact the clinic early if a bracket comes loose, a wire pokes your cheek, a tray cracks, or pain or swollen gums last more than a few days.

The right appliance can only be decided after an examination and X-rays. Reference prices for each option are on our orthodontics and braces page; book a consultation by hotline 0928 888 121 or the Zalo Mini App so a doctor can compare the options for your own case.