Dental Implants: A Complete Guide

Losing a tooth, whether from trauma, periodontal disease, or advanced decay, affects far more than aesthetics. A missing tooth compromises chewing, can alter speech, triggers progressive resorption of the jawbone, and creates a domino effect on neighboring teeth, which tend to drift toward the empty space. Dental implants are today the most predictable way to replace a missing tooth without touching the healthy ones around it. This guide explains what an implant is, who qualifies, what each phase of treatment involves, what recovery looks like, and how implants compare with the alternatives. I am Dr. Pablo Atria and I lead implant treatment at AS Odontología Digital; what follows is what I explain at a first consultation.

What a dental implant is and how it bonds to bone

A dental implant is an artificial root made from medical-grade titanium or zirconia. It is a small screw placed into the upper or lower jawbone which, over a period of three to six months, bonds biologically to the bone in a process called osseointegration. A crown that replicates the shape, color, and function of the natural tooth is then fixed onto that root.

Osseointegration is what makes an implant work, so it is worth understanding. Titanium has a particular property: bone recognizes it as compatible and does not wall it off the way it would a foreign body. In the weeks after surgery, bone cells grow directly onto the implant surface, with no layer of soft tissue in between, until the implant is rigidly anchored. This is why an implant is not placed and loaded on the same day by default: bone needs that quiet period to consolidate the bond. There are situations where a provisional tooth can go on immediately, which I cover in the article on immediate loading; at AS we indicate it only when the case allows.

A complete implant has three parts: the implant itself (the root inside the bone), the abutment or connector that emerges through the gum, and the crown, the visible part. Each is planned together with the others; the position of the root is decided by where the crown needs to end up, never the other way around.

Who is a candidate, and what that really means

The vast majority of adults in good general health can receive implants. The fundamental requirements are sufficient bone volume in the area, healthy gums, and no uncontrolled systemic disease that could compromise healing. Being a candidate, in practice, means that your body can complete osseointegration predictably and that you will be able to keep the implant clean afterwards.

Some factors do not rule out treatment but do change the plan. Poorly controlled diabetes slows healing. Smoking reduces blood supply to gum and bone, and is one of the most consistent risk factors for implant loss. Active periodontal disease has to be treated first, because the same bacteria that destroyed the support of a tooth can do the same around an implant. Heavy bruxism calls for protecting the restoration with a night guard. None of these is a definitive no; they are variables we assess and, in many cases, bring under control before surgery. If you want the detail on what can go wrong and why, I cover it in implant risks and failure.

What if there is not enough bone

This is the most common question at consultation. When a tooth has been missing for years, the bone that held it resorbs, and sometimes there is not enough height or width left to house an implant. That does not close the door. Guided bone regeneration rebuilds volume with a graft and a membrane, and a sinus lift gains height in the upper molar region. In some cases these are done during the implant surgery itself; in others, a few months beforehand. The CT scan decides which path applies.

The evaluation: what we look at before proposing an implant

At AS Odontología Digital no implant is decided by looking at the mouth alone. The evaluation has three layers. First, your medical history: conditions, medications, habits such as smoking, and how you heal. Second, the clinical exam: the state of the gums, the neighboring teeth, the bite, and the space available for the crown. Third, imaging: a Cone Beam CT (CBCT) and an intraoral scan.

The CBCT shows the bone in three dimensions: height, width, density, and the distance to structures that must be respected, such as the inferior alveolar nerve or the maxillary sinus. The intraoral scan records the exact position of the teeth and gums. By superimposing the two files in the software we see the future tooth and the future root in the same image, and can decide the implant's angle, depth, and diameter before touching the patient. That planning appointment is also where we go through the alternatives and show you, on your own case, what to expect.

The phases of treatment, from planning to crown

The full process usually takes several months, depending on the case in a standard case, and longer if bone needs to be regenerated. These are the phases and what each one feels like.

1. Digital planning

Using the CBCT and the scan we design the ideal implant position in the software and, from that design, fabricate a 3D-printed surgical guide. It is a template that rests on your teeth or gum during surgery and steers the drill to exactly the planned point. For you, this phase is one or two record-taking appointments, with no discomfort.

2. Guided surgery

Placement is done under local anesthesia. Thanks to the guide, surgical time is typically 20 to 40 minutes per implant, and in many cases the gum does not need to be lifted, which reduces swelling and postoperative pain. What you feel during surgery is pressure and vibration, not pain. How the guide works and why it changes the experience so much is explained in guided implant surgery.

3. Osseointegration

Next come the three to six months in which bone bonds to the implant. During this time, if the tooth is visible, you wear a provisional that maintains aesthetics and protects the area. After the first week, most people forget the implant is there. We confirm integration with a clinical and radiographic check before moving to the next phase.

4. Definitive crown

Once the implant is integrated, we take a digital impression of the abutment and design the crown with a CAD/CAM workflow in the clinic itself. We work with Straumann implants and crowns in zirconia or lithium disilicate, materials that blend with the color and translucency of your teeth. The implant crown is tried in, the bite is verified, and it is screwed or cemented depending on the case.

Recovery: what to expect in the first days

Recovery is simpler than most people imagine. During the first 48 hours, mild swelling and discomfort are normal and are managed with the pain relief we indicate and with cold compresses. Most of our patients resume their activities the following day. During the first week it helps to eat soft foods, avoid smoking, and clean the area gently, following the written instructions we give you.

Symptoms that should make you call: pain that increases rather than decreases after the third day, bleeding that does not stop, swelling that grows, or fever. At AS we handle our patients' emergencies via WhatsApp to assess the situation and book a visit if needed. If pain itself is your main worry, I have an article dedicated to whether a dental implant hurts.

Implants versus bridges and removable dentures

A fixed bridge replaces the tooth by resting on its neighbors, which must be ground down to serve as abutments. It works well, but it sacrifices healthy structure and does not stop the bone under the gap from continuing to resorb. A removable denture is the least invasive option, though it moves, needs adhesives, rests on the gum, and accelerates bone loss through pressure.

An implant avoids both problems: it does not touch the adjacent teeth and, by transmitting mechanical stimulus to the bone, helps preserve it. It is brushed like your own tooth and lets you eat naturally. That said, an implant is not a natural tooth either, and the differences matter for how you care for it; I detail them in implants vs. natural teeth.

How long implants last, and what depends on you

With proper maintenance, dental implants have a survival rate exceeding 95% at ten years according to a systematic review, and many last the patient's entire lifetime. The part that depends on you carries the most weight: rigorous hygiene around the implant, periodic check-ups, no smoking, and protecting the restoration if you clench. The crown may need replacing at some point due to wear, without affecting the implant. The specific routines are in how to care for your implants.

How we approach implants at AS Odontología Digital

I plan every case personally on the CBCT and the intraoral scan, and it is executed with a printed surgical guide. The definitive crown is designed and made in the clinic with a CAD/CAM workflow, which lets us adjust shape and color without depending on an outside laboratory. My training combines clinical practice with biomaterials research (Master in Biomaterials, PhD in Biomedical Sciences) and teaching as Director of the Advanced Clinical Fellowship in Operative and Digital Dentistry at NYU College of Dentistry; that translates into materials and protocols chosen on evidence.

If you have lost one or more teeth and want to know whether an implant is right for you, book an evaluation. We analyze your case with imaging, show you the plan, and present a clear treatment path with its phases and timelines.

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