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Summary

The results of inferior alveolar nerve functional state investigation for 383 patients after dental implantation are presented in the article. Besides, structural and anatomical variations of the mandible and its canal that is of significant importance in planning dental implantation, based on the analysis of mandible ortopantomograms of 750 patients as well as the referral data are showed.

Traumatic injury of the inferior alveolar nerve following dental implantation is found in 17.75% of cases. According to the type of the functional disturbance of the nerve and the dynamics of its recovery, which objectively may be assessed using sensography, three grades of the nerve injury have been estimated: the first type or mild nerve damage is found to 9.92 % of patients, the second or moderate damage – 7.05%, the third type or severe damage – in 0.78% of cases.

The subjective clinical symptoms of the injury of inferior alveolar nerve relieve more rapidly and nerve function recovers faster if the following treatment is applied: in the first type cases – administration of NSAID, antihistamine (or glucocorticoides), vasodilatators, diuretics, B group vitamins; in the second type cases; a good therapy effect is gained if the above mentioned treatment is proceeded after nerve decompression; in case of the third type nerve injury the removal of dental implant and symptomatic treatment is recommended.

The prevention of traumatic injury of inferior nerve is proper and rational planning of implantation method, in accordance with the anatomical features of the mandible and individual variations of the topography of mandible canal.

Key words: inferior alveolar nerve, traumatic injuries of peripheral nerves, neurological complications of dental implantation.

Received: 02 10 2004

Accepted for publishing: 20 12 2004

¹Department of Maxillofacial Surgery, Kaunas Medical University

²Department of Human Anatomy, Kaunas Medical University

Ricardas Kubilius¹ - D.D.S., dr.hab.med., professor, Head of Department of Maxillofacial Surgery.

Gintautas Sabalys¹ - M.D., dr.hab.med., professor.

Gintaras Juodzbalys¹ - D.D.S., PhD., associate professor.

Vytautas Gedrimas² - M.D., PhD., associate professor.

Address correspondence to prof. Ricardas Kubilius, Department of Maxillofacial Surgery, Kaunas Medical University, Eiveniu 2, Kaunas, Lithuania.



	Baltic Dental and Maxillofacial Journal

December, 2004, Vol. 6, No. 4 CONTENTS SCIENTIFIC ARTICLES Magnetic Resonance Imaging Findings of the Temporomandibular Joint Internal Derangement in a Non-patient Population 99 - 102 Assessment of Complete Cleft (CLP) Patients’ Occlusion at Age of Five 103 - 105 Traumatic Damage to the Inferior Alveolar Nerve Sustained in Course of Dental Implantation. Possibility of Prevention 106 - 110 Periodontal Status in Population of Belarus 111 - 113 Modulatory Effect of Ammonium Ions on Human Neutrophil Oxidative Burst in Response to Bacterial Stimuli 114 - 117 Dental Fear Among Teenagers. Individual Anxiety Factors 118 - 121 Damage of Inferior Alveolar Nerve in Mandible Fracture Cases 122 - 125 © 2004 Stomatologija		Stomatologija 2004; 6 (4): 106-110 220 KB Traumatic Damage to the Inferior Alveolar Nerve Sustained in Course of Dental Implantation. Possibility of Prevention Ricardas Kubilius, Gintautas Sabalys, Gintaras Juodzbalys, Vytautas Gedrimas Summary The results of inferior alveolar nerve functional state investigation for 383 patients after dental implantation are presented in the article. Besides, structural and anatomical variations of the mandible and its canal that is of significant importance in planning dental implantation, based on the analysis of mandible ortopantomograms of 750 patients as well as the referral data are showed. Traumatic injury of the inferior alveolar nerve following dental implantation is found in 17.75% of cases. According to the type of the functional disturbance of the nerve and the dynamics of its recovery, which objectively may be assessed using sensography, three grades of the nerve injury have been estimated: the first type or mild nerve damage is found to 9.92 % of patients, the second or moderate damage – 7.05%, the third type or severe damage – in 0.78% of cases. The subjective clinical symptoms of the injury of inferior alveolar nerve relieve more rapidly and nerve function recovers faster if the following treatment is applied: in the first type cases – administration of NSAID, antihistamine (or glucocorticoides), vasodilatators, diuretics, B group vitamins; in the second type cases; a good therapy effect is gained if the above mentioned treatment is proceeded after nerve decompression; in case of the third type nerve injury the removal of dental implant and symptomatic treatment is recommended. The prevention of traumatic injury of inferior nerve is proper and rational planning of implantation method, in accordance with the anatomical features of the mandible and individual variations of the topography of mandible canal. Key words: inferior alveolar nerve, traumatic injuries of peripheral nerves, neurological complications of dental implantation. Received: 02 10 2004 Accepted for publishing: 20 12 2004 ¹Department of Maxillofacial Surgery, Kaunas Medical University ²Department of Human Anatomy, Kaunas Medical University Ricardas Kubilius¹ - D.D.S., dr.hab.med., professor, Head of Department of Maxillofacial Surgery. Gintautas Sabalys¹ - M.D., dr.hab.med., professor. Gintaras Juodzbalys¹ - D.D.S., PhD., associate professor. Vytautas Gedrimas² - M.D., PhD., associate professor. Address correspondence to prof. Ricardas Kubilius, Department of Maxillofacial Surgery, Kaunas Medical University, Eiveniu 2, Kaunas, Lithuania.