Yes, zygomatic implants are a great solution, because when bone is low conventional implants can not be used, giving teeth becomes difficult. Best part is they can be combined with conventional implants for an optimal solution.
No, they are not more painful than conventional implants, although surgery may be extensive than conventional implants, which leads to slightly longer recovery.
The cumulative success rate of zygomatic implants for the treatment of severe maxillary atrophy was 98.5% at less than 1 year, 97.5% between 1 and 3 years, 96.8% between 3 and 5 years and 96.1% after more than 5 years
some patients may suffer from sinusitis which can be attributed to the zygoma implants but such incidents are rare.
Zygomatic implants are longer than conventional implants they can between 30 – 60 mm.
Nobel Biocare Zygoma : The implants range from 30 mm to 52.5 mm in length and are available with either a machined or a TiUnite surface.
If you need zygomatic implants you can expect the costs to be slightly higher. Zygomatic implants are a little longer than regular implants, and they require a lot more skill and training to place. They are designed for patients with significant bone and gum loss