Clinical guide
Last updated: February 2026

Sinus Lift

A sinus lift is a foundation step. It is not a quick fix.

Not all cases are the same. Stability depends on foundation, force, timing, and maintenance.

Procedure definition

A sinus lift is a foundation procedure, not a diagnosis.

The plan matters more than the material.

An exam confirms foundation limits and long term risk. That is what protects options.

Call today vs urgent medical evaluation

Call today if
  • Pressure or swelling is increasing after surgery
  • You feel drainage or a bad taste with pressure
  • Pain is rapidly worsening
  • Fluid seems to move between mouth and nose
  • You feel sick and oral symptoms are present
Urgent medical evaluation if
  • Swelling is spreading into the face or neck
  • Fever occurs or you feel sick
  • Swallowing feels difficult
  • Breathing feels affected

This page helps you understand sinus lift decisions. It does not replace an exam. If you are unsure, a calm evaluation is the right move.

Common situations and what they can mean

SituationCommon reasonUrgencyStructural risk
You were told there is not enough upper back tooth bone for an implantSinus space expanded and bone height is limited after tooth lossSchedule evaluationMEDIUM
A missing upper molar has been gone for a long timeBone height can shrink and the sinus can drift downwardSchedule evaluationHIGH
You want implants but the plan mentions graftingGraft may be needed to create a stable implant foundationSchedule evaluationMEDIUM
You recently had a sinus lift and pressure or swelling is increasingInflammation, bleeding, or infection needs evaluation earlyCall todayHIGH
Fluid passes between mouth and nose, or you feel air movement where it should not beCommunication between areas needs urgent evaluationCall todayHIGH
You have foul taste, drainage, or worsening pain after surgeryInfection risk or sinus irritation needs evaluationCall todayHIGH
You have spreading swelling or feverMedical urgency comes before planning dentistryUrgent medical evaluationHIGH

Situations guide planning. The exam confirms foundation limits. Guessing often creates repeat dentistry and higher maintenance.

Why sinus lifts exist

Upper back tooth implants depend on bone height. When a tooth has been missing, the foundation can shrink and the sinus space can expand downward.

Do not confuse “not enough bone” with “no options.”

The decision is about how to build a stable foundation without creating unnecessary risk.

Who benefits from a sinus lift

Sinus lifts are considered when a missing upper back tooth should be replaced and the implant foundation is not tall enough for a stable plan.

The goal is stability, not just placing an implant.

We confirm bone height, width, sinus shape, and whether the plan can stay stable under real chewing forces.

Timing and sequencing

Some cases allow implant placement at the same time. Other cases are safer staged. Timing is a stability decision.

If inflammation risk is high, rushing increases complication risk.

We evaluate infection risk, tissue condition, and the amount of foundation needed before choosing timing.

Sinus anatomy and limits

Sinus anatomy varies. The membrane, the sinus shape, and nearby anatomy can change what is realistic.

If a plan ignores anatomy limits, the long term outcome is less predictable.

Imaging helps us plan implant position, graft volume, and the safest path to stability.

Healing and what stability means

Healing is about becoming stable enough for the next step. The timeline depends on how much foundation is being created and what the force system looks like during healing.

Protecting the site during healing is part of the procedure.

We plan temporary function and bite management so the foundation is not overloaded while it is trying to stabilize.

Force and bite stability

Foundation procedures still live inside a bite system. If forces are unstable, stability drops even with good graft work.

If you clench or grind, force planning matters.

We look at bite contacts, guidance, and whether protection is needed to keep the plan stable over time.

Maintenance reality

The long term goal is a stable implant system. That includes cleanability, recall rhythm, and inflammation control.

If maintenance is not realistic, the long term risk shifts fast.

We align the plan with what you can actually maintain long term.

Alternatives and tradeoffs

A sinus lift is not always the best path. Sometimes a different implant plan works. Sometimes a bridge or partial is more realistic. Sometimes leaving a space alone is acceptable if the system stays stable.

The best option is the one that stays stable in your real life.

We compare options through structure, force, time, and stability, not through a single feature.

What we evaluate (Structure, Force, Time, Stability)

We do not choose a sinus lift well by guessing. We evaluate the foundation, the force system, the timeline, and the long term maintenance reality.

Structure
What remains strong
We assess bone height, bone width, sinus boundaries, and tissue conditions. Structure sets the ceiling for stability.
The decision changes when foundation limits restrict a stable implant position.
Force
Where load is landing
We check bite contacts and how force will be managed during healing and after the implant is restored.
The decision changes when force is unstable or repeatedly lands on a weak zone.
Time
Trend and progression
We look at how long the tooth has been missing and whether delay increases complexity or reduces predictable options.
The decision changes when waiting increases structural risk.
Stability
The cleanest durable path
We plan for stability over years, including inflammation control, cleanability, and realistic maintenance.
The decision changes when the plan would predictably repeat dentistry or overload the system.

If you want the deeper decision layer, our Structural Decision Framework explains how we evaluate stability before irreversible treatment.

Why acting too fast can be harmful

Foundation procedures can feel urgent when you want implants. But irreversible treatment should not be chosen by speed alone.

We do not recommend irreversible treatment based on symptoms alone.

We confirm first. Then we choose the cleanest next step. That is how you avoid repeat dentistry and protect future options.

What you can do right now

If it is not urgent:

  • Avoid chewing hard foods on that side if it is tender
  • Keep the area clean and reduce inflammation triggers
  • Schedule a visit for evaluation and imaging

Track these details before your visit:

  • How long the tooth has been missing
  • Whether chewing has shifted to other areas
  • Any sinus history or recurring congestion on that side
  • Whether symptoms are stable or escalating

If pain is severe or swelling is present:

  • Call us
  • Do not wait for it to go away on its own

Frequently asked questions

What is a sinus lift
A sinus lift is a foundation procedure. It creates more bone height in the upper back jaw so an implant can be placed in a stable position. It is not a cosmetic procedure and it is not the goal by itself. The goal is a stable replacement system.
Do I always need a sinus lift for upper molar implants
No. Some people have enough bone for an implant without grafting. Some people can use a different implant position or length. A sinus lift is considered when the foundation is not tall enough to support a stable implant plan. The exam and imaging confirm what is realistic.
Is a sinus lift worth it
Sometimes, yes. If the missing tooth should be replaced and the bone height is limited, a sinus lift can increase long term stability. It is not worth it when the overall force system is unstable, inflammation risk is high, or the plan does not fit real life maintenance. The right question is not whether the graft works. It is whether the full system will stay stable.
How long does a sinus lift take to heal
Healing is staged. Early healing is about comfort and tissue closure. Longer healing is about bone becoming stable enough for implant steps. Timing depends on how much foundation is needed and whether an implant can be placed at the same time. We plan timing to protect stability, not to rush a calendar.
What are the main risks of a sinus lift
The main risks are membrane complications, infection, and a plan that does not match anatomy or force realities. Most problems are easier to manage when they are caught early. That is why follow up and symptom tracking matter.
What should I do if I have swelling or fever after surgery
If swelling is spreading, fever is present, swallowing feels difficult, or breathing feels affected, treat it as urgent medical evaluation. Call promptly and seek urgent care if symptoms escalate. Planning can wait until safety is addressed.
Is there an alternative to a sinus lift
Sometimes. Alternatives can include different implant positioning, different implant sizes, staged timing, or not placing an implant in that area if the system can stay stable without it. In some cases a bridge or partial may be more realistic. We compare options through structure, force, time, and long term stability.
A calm next step
Clarity first. Then decisions.
If you are considering implants and were told you may need a sinus lift, start with a calm evaluation. We will explain what we see and what protects long term stability.
We do not recommend irreversible treatment based on symptoms alone. Structure, force, time, and long term stability must be evaluated first.
If you want the decision logic

These scenarios show how thresholds shift when structure changes over time under force.