What are the types of teeth implants?

Each tooth occupies a unique position within the oral cavity, which is divided into anterior (front) and posterior (back) regions.

The anterior teeth include the central incisors, lateral incisors, and canines, for a total of 6 teeth on each side and 12 teeth for both the upper and lower jaws.

In simple terms, this refers to the two central incisors in the middle, along with two teeth on each side, both left and right. The remaining teeth are classified as posterior teeth.

Based on the location of the missing teeth, dental implants can be divided into anterior and posterior implants. Implants placed in the front tooth region are called anterior tooth implants, while those placed in the back tooth region are called posterior tooth implants.

Classification based on the number of missing teeth and the number of dental implants can be done as follows:

1. Number of Missing Teeth

• Single tooth loss
• Multiple tooth loss
• Partial tooth loss (half-arch)
• Complete tooth loss (full-arch)

2. Number of Dental Implants

• Single Implant Placement
• Multiple implant placement
• Half-arch implant placement
• Full-arch implantation

1. Single Crown Implantation

When a patient is missing a single tooth, a dental implant is placed and a single crown is attached to the implant for restoration. This type of restoration is known as a single crown restoration, where one implant supports one crown.

2. Connected Crown Implantation

Connected crown implantation typically involves connecting two or more crowns, which are then connected to the appropriate number of dental implants. This is a method of dental restoration where multiple crowns are attached to multiple implants.

According to the timing of dental implantation, it can be classified into immediate implantation and delayed implantation.

1. Immediate implantation

As the name suggests, immediate implantation involves the removal of teeth with little significance or decayed tooth roots, followed by an immediate implantation procedure.

There is no need to wait and the dental implant is placed directly into the socket of the extracted tooth to restore the missing tooth.

This method of restoration is relatively less traumatic, reduces the number of surgical procedures, effectively prevents bone resorption in the alveolar ridge, protects against alveolar bone disease, saves time in alveolar bone healing, and facilitates better restoration of chewing function.

1. Immediate implant placement allows implants to be placed immediately after residual root extraction, eliminating the need to wait for the 3-6 months required for alveolar bone regeneration. This saves a considerable amount of time and shortens the overall implantation period.

2. It reduces the number of implantation steps, eliminating the need for a second implantation. Patients with missing teeth are spared multiple discomforts.

3. Since the implant is placed immediately after extraction, it helps prevent physiological resorption of the alveolar bone during the waiting period, better preserves the surrounding bone tissue of the extraction socket, and maintains the natural shape of the gum tissue.

1. There are higher requirements for the condition of the alveolar bone, and not everyone is eligible for this procedure. Gaps between the extraction socket and the implant may require artificial bone powder or membranes for filling, especially if the socket diameter is larger than the implant diameter.

2. This procedure requires a high degree of skill on the part of the dentist. A perfect fit between the socket and the implant is rare and requires adjustments in the later stages of the dental procedure. Precision is critical because even small mistakes can result in misalignment of the implant.

Delayed implantation involves first extracting the natural tooth roots, waiting for the surgical site to heal completely, and then implanting the dental implant once the alveolar bone absorption has stabilized.

Although this method requires more time, it is suitable for individuals with recurrent dental infections, severe alveolar bone atrophy, or poor oral conditions, and contributes to a higher success rate of dental implantation.

After a tooth is extracted, the extraction socket typically takes about 3 months to heal completely. Once the socket has healed, the dentist will prepare a hole in the alveolar bone at the site of the missing tooth and place the dental implant in the bone.

After 2 to 3 months, the implant usually fuses with the alveolar bone. The dentist then places the abutment and attaches the crown.