What it actually is
In the conventional protocol the implant is placed and left alone for several months before anything goes on top of it. In immediate loading a temporary prosthesis is fitted on the day of surgery or within the following forty-eight hours.
What does not change is the osseointegration time. Bone still needs its three to six months to bond to the titanium surface. What is done is to let that happen underneath a prosthesis designed not to take chewing force: the bite is adjusted so it does not contact the opposing arch, or barely does.
Put another way: immediate loading solves an aesthetic and functional problem during the wait. It does not shorten the wait.
The conditions it requires
Not every implant can be loaded immediately, and the final decision is made during surgery, with the implant already in place. These are the factors that decide it:
- Primary stability
- The mechanical anchorage the implant achieves in bone at the moment it is placed. It is measured by insertion torque and, where available, by resonance frequency analysis. Below the threshold, it is not loaded: this condition outranks all the others.
- Bone quantity and quality
- Dense bone allows high stability; very porous bone, as the upper back jaw often is, frequently does not.
- No active infection
- If a tooth with infection has been removed, the site needs to be clean. Immediate loading onto an infected site is a poor bargain.
- A bite that can be controlled
- If your occlusion makes it impossible to keep the temporary out of contact, loading it would be exactly what the protocol is trying to avoid.
- Bruxism
- Clenching defeats the purpose of an unloaded prosthesis. In marked bruxists, immediate loading is approached far more cautiously and almost always with a guard.
What is fitted on the day
A temporary prosthesis, not the definitive one. It may be a temporary crown on a single implant, a temporary bridge on several, or a fixed full bridge in a full-arch case.
It is made from materials meant to last months rather than years, and its shape does clinical work as well: it guides the healing of the gum so that the contour is already formed when the definitive crown arrives. At the front of the mouth that function usually matters more than the fact of having a tooth at all.
The definitive prosthesis is made afterwards, with integration confirmed and on fresh measurements.
Looking after it in the first weeks
This is where the real risk of immediate loading sits, and it is not surgical: it is behavioural. An implant that micro-moves too much during the first weeks does not integrate.
A soft diet, seriously
Six to eight weeks biting nothing hard on that side. No crusty bread, ice, nuts or fibrous meat on the treated side.
Do not use the temporary to cut
At the front of the mouth, biting into a whole apple with a temporary is the single gesture that most often forces a treatment to be redone.
Hygiene from day one
Gentle around the wound, but consistent. Gum inflammation at this stage compromises integration.
Report any movement
If the temporary feels loose, or something changes when you bite, it needs seeing promptly rather than at the next scheduled visit.
This page is general patient information, written so that you arrive at the practice knowing what to ask. It is not a diagnosis or a treatment recommendation: those can only follow a clinical examination and the appropriate imaging.
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