This is the day you've been waiting for. Slide your first aligner tray over your teeth and press gently until it clicks into place. It should feel snug — that's the whole point. The custom-moulded BPA-free plastic is designed to apply gentle, controlled pressure to gradually shift your teeth.

You'll likely feel tightness and mild pressure, particularly on the teeth that need the most movement. Some patients describe it as an awareness rather than real pain. Your speech may feel slightly different for the first few hours — a very mild lisp is completely normal and fades quickly.

For daytime aligners, aim to wear them for 22 hours per day. That means they only come out for eating, drinking (anything other than water), and brushing. If you've chosen Smileie's NightOnly aligners, you'll wear them for approximately 10 hours during sleep.

You wake up and your aligners are still in — that's a good sign. Day 2 is when most people notice the initial tightness has already started to ease. Your teeth may feel slightly tender when you bite down on food, and you might notice some extra saliva production. Both are perfectly normal responses to having something new in your mouth.

Today is a great day to establish your eat-brush-reinsert routine. When it's time for a meal, gently remove your aligners (start from the back molars), eat normally, brush your teeth, rinse the trays, and pop them back in. This three-step cycle will become second nature by the end of the week.

If you're experiencing mild discomfort, cold water can help. Some patients find that chewing on the aligners for a few minutes helps them seat more firmly and eases the pressure sensation.

By Day 3, the initial pressure is noticeably reduced for most people. Your mouth is adapting to the aligners, and you'll find that inserting and removing them is already much easier than it was on Day 1. If you had a slight lisp, it's probably fading fast.

This is also when you start to appreciate the invisibility factor. If you haven't already, go about your day and see if anyone notices — most people won't. The clear, low-profile design of the trays makes them virtually undetectable during normal conversation.

Keep your aligner case handy. One of the most common mistakes new patients make is wrapping their trays in a napkin during meals and accidentally throwing them away. Always use the case.

By now, the eat-brush-reinsert cycle feels natural. You're probably getting faster at removing and reinserting your aligners, and you've worked out the best times to eat so you stay within the 22-hour wear target.

A lot of patients find that having aligners actually improves their eating habits — you snack less because you don't want to go through the removal and cleaning routine for a biscuit. Hydration is simple too: you can drink water freely with aligners in. Just avoid hot drinks, sugary beverages, or anything coloured that could stain the trays.

Day 5 is a turning point for most new aligner wearers. The trays feel like part of your teeth, not something on top of them. Talking, laughing, and working all feel normal. If anyone at work or uni hasn't noticed your aligners yet — they probably won't.

This is also a good time to explore your Smileie Patient Portal. Log in and check your treatment timeline, see your upcoming tray changes, and familiarise yourself with the support options. Smileie offers 24/7 customer support via chat, phone, and email if anything feels off.

If you're a Smileie Pro patient, your Dental Monitoring device and app will be tracking your progress remotely — so your dental team is keeping an eye on things even without an in-person visit.

By Day 6, your aligners feel like they've always been there. Most initial pressure is gone, and what remains is just a subtle snugness that tells you the aligners are working. You've figured out your cleaning routine, your meal timing is sorted, and you're already thinking less about the aligners.

Today is a good day to give your trays a proper clean. Rinse them in lukewarm water (never hot — it can warp the plastic) and gently brush them with a soft toothbrush. Some patients use a mild, clear antibacterial soap. Avoid coloured mouthwash or toothpaste with whitening granules that could scratch the surface.

Congratulations — you've made it through the biggest adjustment period of your entire aligner journey. If you can handle Week 1, the rest is a breeze. The routine is set, the discomfort is gone, and you're well on your way to the smile you approved in your 3D treatment preview.

From here, you'll change to your next tray according to your treatment schedule. Each new tray may bring a brief return of that snug, pressured feeling — but you already know it fades within a day or two. On average, Smileie treatments run 4 to 6 months for daytime and 6 to 8 months for nighttime aligners, with visible results starting around the 6 to 8 week mark.