It is believed that dental implantation on the maxilla is much difficult than on the mandibular. It can be a result of thin upper jawbone. That is why stability in this area require long implants. Furthermore, the aesthetic aspect of implantation on the upper jaw is very important for all patients.
There are several anatomical risks related to implantation in the maxilla. They are located in maxillary anterior area, canine, sinus and palate-webbed area. Let’s take a closer look on anatomical structures located in these areas and how theirs injury would affect the outcome of the implantation.
- 1. During the implantation in the maxillary anterior area, it is possible to damage the incisive canal. It is located in the central incisors area. Such damage would result in poor osseointegration and bleeding. Incisive canal can be determined on the axial slice scanner. If a patient has wide incisive canal, it is necessary to do autoplasty.
2. The nasal cavity is another anatomical structure that may be damaged during dental implantation. More often, this can happen in the process of bi- cortical bones searching. Such damage can cause excessive bleeding and increase the risk of implant infection. In is necessary to measure the bottom of the nasal cavity using a coronal slice scanner at the planning phase of implantation.
3. If you are installing the dental implant in canine area, there is a risk to damage front and upper alveolar canals. This is a bundle of nerves and blood vessels, which is situated approximately 5 mm behind the infraorbital foramen. If you will damage of this structures it can cause bleeding.
4. Also, do not forget about infraorbital foramen, which is located at 5 mm above the edge of the orbit, and 3 cm moves away from the midline. After damage to the beam, the patient may experience anesthesia or paresthesia of the upper teeth. To avoid such injuries, select beam before surgery.
5. Remember that sinus is one of the most serious obstacle for dental implantation on the upper jaw. If you perforate the sinus bottom, it could result in sinusitis. Using the axial and direct coronal section, you can find out the anatomical location of the maxillary sinus, and determine the location for implant placement.
6. Everyone knows that the alveopalatal area consists of several structures. There is no sufficient bone tissue for implantation, however, and it can be use in some cases. During dental implantation, it is likely to damage the palatal and alveolar descending artery. The damage would result in bleeding, which will finish after implant placement.
Remember that extensive knowledge of the maxillofacial area anatomy is very useful in order not only to predict the occurrence of difficulties, but also to overcome them during implantation.