How to Put in Fake Grills | A Proper Fit in Minutes

Getting a comfortable, secure fit for fake grills comes down to one thing: heat. Too cold and the molding bar won’t soften. Too hot—as in boiling—and you risk ruining the bar or burning yourself. The sweet spot is 165–175°F (74–77°C), and the whole process takes less time than brushing your teeth twice.

Grillz are temporary cosmetic pieces that sit over your natural teeth. They should feel snug but never painful. If you’re weighing whether custom-made pieces are worth the upgrade, our rundown of the best fake grillz options on the market covers the top picks.

What You Need Before You Start

Gather everything first so the molding bar doesn’t cool while you hunt for tools. The basic kit is small.

• Your grillz set, including the clear or white molding/fixing bar
• A heat-safe bowl or cup
• Water heated to 165–175°F (74–77°C)
• Clean tweezers for handling the hot bar
• A mirror

Clean hands matter, but clean teeth matter more. Brush and floss first, then rinse well. A clean surface lets the molding bar grip your enamel properly instead of slipping on plaque or leftover food.

The Step-by-Step Fitting Process

Work in front of a mirror so you can see the grillz seating as it happens. Rushing this step is the main reason grillz end up loose or lopsided.

1. Pre-bend the metal. Gently curve the grillz to match the arch of your mouth before adding any heat. Fold the bottom hooks outward slightly so they clear your gums.
2. Place the molding bar. Drop the fixing bar into the recessed area where your teeth will sit. It should rest in the channel, not on top of it.
3. Heat the water. Aim for 165–175°F (74–77°C). No thermometer? Heat water until tiny bubbles form along the bottom—well before a rolling boil. Boiling water is the one hard no.
4. Soak the grillz. Use tweezers to lower the grillz and bar into the water. Leave them until the molding bar turns clear or translucent—usually 30 to 60 seconds.
5. Insert and hold. Lift the grillz out with tweezers, let excess water drip off, then slip them onto your teeth. Press gently and hold for two to three minutes while the bar sets.
6. Check the fit. The grillz should feel secure without squeezing. If they wobble, repeat the heating and reset. If they hurt, remove them and adjust the metal curve rather than forcing it.

Rhino Grillz’s official fitting guide describes this same sequence, including the specific water temperature range and the warning to keep water short of boiling.

Common Fitting Mistakes and How to Avoid Them

Most grillz problems trace back to three errors, and all of them are easy to fix once you know what to look for.

• Boiling water. It can melt or warp the molding bar, leaving you with a grillz that never sets properly. Hot-but-not-boiling is the rule.
• Skipping the pre-bend. A flat grillz forced onto a curved dental arch sits unevenly and digs into your gums. Shape the metal first, then heat.
• Over-tightening. If the grillz resist going on, they’re not too small—they’re misaligned. Pull them out, recheck the bend, and try again. A forced fit causes soreness and can scratch your enamel.

One more thing worth noting: some low-quality DIY videos suggest molding a grill from aluminum foil. No credible source endorses this. Foil doesn’t hold a shape, it can cut your gums, and it offers none of the durability of a proper metal grillz with a molded bar.

FAQs

How long do fake grills last once fitted?

A properly fitted grillz with a hardened molding bar lasts for many wears, provided you store it in its case and keep it dry when not in use. The molding bar can be re-softened with warm water if the fit shifts over time, but avoid repeated reheating, which wears the bar down faster.

Can I eat or drink while wearing grillz?

No. Grills are cosmetic pieces designed for short-term wear, not for chewing. Eating can dislodge the molding bar, trap food against your teeth, and bend the metal out of shape. Take them out before any meal, rinse them, and store them properly until you’re done eating.

Do fake grills damage your teeth?

Grillz don’t damage teeth when fitted correctly and worn briefly. The risk comes from poor fit—a loose grillz rubs against enamel, and a tight one presses on gums. Clean your teeth before wearing, remove the grillz before eating or sleeping, and never wear them if they cause pain.