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A deep bite—technically known as a “deep overbite”—is a common malocclusion where the upper front teeth excessively overlap the lower front teeth [1]. While a small amount of vertical overlap (2-4mm) is necessary for healthy dental function, a deep bite can lead to jaw pain, tooth erosion, and even damage to the soft tissues of the roof of the mouth [2].
For many patients, the most daunting part of orthodontic correction isn’t the top Arch, but the bottom brackets. Because of the way the teeth overlap, placing brackets on the lower teeth often presents unique mechanical challenges. This guide explains exactly what to expect from bottom brackets when correcting a deep bite, from “bite turbos” to specialized mechanics.
Table of Contents
- The “Collision” Problem: Why Bottom Brackets are Different
- What to Expect: Tools Used with Bottom Brackets
- Real-World Sentiments: The First 14 Days
- Aesthetic Options: Ceramic vs. Metal
- Timeline for Correction
- Summary of Key Takeaways
- Sources
The “Collision” Problem: Why Bottom Brackets are Different
In a standard bite, there is enough clearance to glue brackets onto the lower teeth without interference. In a deep bite, however, the upper teeth often hang so low that they would bite directly onto the lower brackets the moment the mouth closes.
If an orthodontist were to simply “glue and go,” the forces of mastication (chewing) would shear the lower brackets off the teeth within hours. To prevent this, orthodontists must use specific tools to “open” the bite temporarily, creating a safety gap for the bottom metalwork.
In a deep bite, the upper teeth naturally overlap the lower ones so much that they could bite directly onto the brackets and break them. To prevent this, your orthodontist will use specific tools like bite turbos to keep your teeth separated until the bite is corrected.
If brackets were placed without opening the bite first, the pressure from chewing would immediately shear the metalwork off. A safety gap must be created to ensure the brackets stay attached and the teeth can move into their correct positions.
What to Expect: Tools Used with Bottom Brackets
You will likely not just receive brackets on your bottom teeth; you will receive “adjuncts” designed to manage the vertical space.
1. Bite Turbos (Bite Blocks)
These are small mounds of composite resin or metal “ramps” typically placed on the back of the upper front teeth or the chewing surfaces of the molars. According to research published in Progress in Orthodontics, anterior bite turbos are highly effective at forcing the jaw to stay slightly open [3].
The Experience: For the first few weeks, your back teeth will not touch when you bite down. This makes chewing difficult and may cause a temporary lisp.
The Purpose: This protects the bottom brackets and allows the back teeth to “extrude” (grow slightly taller), which naturally shallows the deep bite.
2. Miniscrew-Supported Intrusion (MSI)
For more severe skeletal deep bites, orthodontists may use Temporary Anchorage Devices (TADs). These are tiny titanium screws placed in the gums. A meta-analysis found that miniscrew-supported intrusion is superior for upper incisor intrusion compared to traditional arches [3].
- The Experience: You may feel pressure at the screw site, but once the bone heals around it, it becomes a stable anchor to pull the front teeth “up” into the jaw bone.
3. Reversed Curve of Spee (RCS) Arches
Your orthodontist might use a bottom wire that looks “rocked” or curved upward at the ends. This is a lower reversed curve of Spee wire [4]. Its job is to “level” the lower arch by pushing the lower incisors down and pulling the lower molars up.
| Tool | Primary Purpose |
|---|---|
| Bite Turbos | Prevents bracket shearing and allows molar extrusion. |
| Miniscrews (TADs) | Provides stable anchorage to intrude (uplift) front teeth. |
| RCS Arches | Levels the lower arch by pushing incisors down. |
Bite turbos are small resin or metal ramps placed behind the front teeth or on molars to prevent you from closing your mouth fully. Initially, you may experience a slight lisp and find it difficult to chew because your back teeth won’t touch.
An RCS archwire is specifically curved to level the lower arch by pushing the front lower teeth down and lifting the back molars up. This helps flatten the curve of your dental arch and reduces the depth of your overbite.
Miniscrews are generally reserved for more severe skeletal deep bites that require precise tooth intrusion. They act as stable anchors to pull teeth into the jawbone and are often more effective than traditional wire arches alone.
Real-World Sentiments: The First 14 Days
Community discussions on platforms like Reddit (r/braces) reveal that the “bite turbo” phase is often cited as the most frustrating part of deep bite treatment. Users frequently report:
“The Pasta Diet”: Because molars don’t touch, many patients survive on soft foods for the first 2–3 weeks.
Soreness: Because the lower teeth are being “pushed” vertically into the bone (intrusion), the dull ache is different from the “pulling” sensation of fixing gaps.
To manage this transition, maintaining hygiene is critical. Food often gets trapped between the bite turbos and the bottom brackets. For help with this, check out our guide on how to clean braces.
Because bite turbos prevent your molars from touching, you won’t be able to grind food effectively for the first few weeks. Most patients stick to a soft food diet, such as smoothies or mashed potatoes, until the teeth begin to shift.
Unlike the pulling sensation of closing a gap, deep bite correction often involves a dull ache because the teeth are being pushed vertically into the bone. This pressure is temporary and usually subsides as your mouth adapts to the new hardware.
Aesthetic Options: Ceramic vs. Metal
Many patients wonder if they can use clear options for the bottom. In our guide on invisible braces vs. ceramic braces, we note that ceramic brackets are more brittle than metal. In deep bite cases, orthodontists often insist on metal brackets for the bottom teeth because they are thinner and can withstand the higher “occlusal” (biting) forces of a deep bite without breaking.
Most orthodontists recommend metal brackets for the bottom teeth in deep bite cases because they are thinner and more durable. Ceramic brackets are more brittle and likely to break under the high biting forces associated with a deep overbite.
Metal brackets can withstand the intense occlusal pressure of a deep bite without fracturing. Their lower profile also minimizes interference with the upper teeth, reducing the risk of accidental breakage during treatment.
Timeline for Correction
Deep bite correction is rarely a “quick fix.” While a gap might close in 4 months, correcting a vertical overbite typically takes 18 to 24 months [5].
Phase 1 (Leveling): Months 1–6 involve opening the bite so the back teeth can touch.
Phase 2 (Correction): Months 6–18 focus on using wires and elastics to fix the relationship between the upper and lower jaw.
Correcting a vertical overbite typically takes between 18 to 24 months, which is longer than simple gap closures. The process involves two distinct phases: an initial leveling phase and a final alignment phase using elastics.
The first six months are dedicated to the ‘leveling’ phase, where the primary goal is to open the bite. This allows enough space for the back teeth to touch and creates the necessary clearance for more complex adjustments in the second phase.
Summary of Key Takeaways
| Feature | Details |
|---|---|
| Primary Constraint | Collision risk requires bite opening before bottom placement. |
| Adjustment Period | 14–21 days for speech and chewing adaptation. |
| Material Choice | Metal is preferred over ceramic for lower teeth due to strength. |
| Total Timeline | 18 to 24 months for complete vertical correction. |
Main Points
- Bracket Protection is Priority: You cannot have lower brackets without “opening” the bite first via turbos or blocks.
- Mechanical Approaches: Correction involves either “intruding” front teeth (pushing them into the bone) or “extruding” back teeth (pulling them out to be taller).
- Temporary Discomfort: Expect a speech impediment and difficulty chewing for the first 14–21 days.
- Superior Stability: Miniscrews (TADs) are currently the most effective clinical method for significant deep bite reduction [3].
Action Plan
- Ask About “Bite Turbos”: At your consultation, ask if you will need anterior (front) or posterior (back) bite blocks.
- Stock Your Pantry: Purchase soft foods (yogurt, mashed potatoes, smoothies) for the first two weeks of bottom bracket placement.
- Prioritize Enamel Health: Deep bites often involve tooth-on-tooth wear. Follow our 8 best practices for maintaining strong tooth enamel to protect your teeth during the transition.
- Monitor Your Speech: Practice speaking out loud at home to help your tongue adapt to the new vertical space created by the bite turbos.
Correcting a deep bite requires patience and specialized hardware on the lower arch. While the initial “bite opening” phase is challenging, it is the only way to safeguard your brackets and achieve a stable, functional smile.
Stock your pantry with soft foods and practice speaking out loud to help your tongue adjust to the bite turbos. It is also helpful to ask your orthodontist whether you will receive front or back bite blocks so you know what to expect.
Deep bite appliances like bite turbos tend to trap food more easily than standard braces. Use specialized cleaning tools and follow a strict hygiene routine to protect your enamel and prevent plaque buildup during the transition.
Sources
- [1] IP Indian Journal of Orthodontics and Dentofacial Research
- [2] Cleveland Clinic: Overbite Overview
- [3] Progress in Orthodontics: Evaluation of Methods for Deep Bite Correction
- [4] Research, Society and Development Journal: Deep Bite Treatment
- [5] Journal of Orthodontics & Endodontics: Deep Bite Etiology and Management